Home / 103,820,297.60-155,730,446.40-86,940,156.80

Finding the Fourth Proportional to 103,820,297.60, 155,730,446.40 and 86,940,156.80

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Solution

The fourth proportional to 103,820,297.60, 155,730,446.40 and 86,940,156.80 is: 130,410,235.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,820,297.60 : 155,730,446.40 = 86,940,156.80 : x
  2. Step 2: Convert to fraction form
    103,820,297.60/155,730,446.40 = 86,940,156.80/x
  3. Step 3: Cross multiply
    103,820,297.60x = 155,730,446.40 × 86,940,156.80
  4. Step 4: Simplify right side
    103,820,297.60x = 13,539,229,428,549,996
  5. Step 5: Solve for x
    x = 13,539,229,428,549,996/103,820,297.60
  6. Step 6: Final answer
    x = 130,410,235.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.