Home / 103,648,025.80-155,472,038.70-87,523,712.20

Finding the Fourth Proportional to 103,648,025.80, 155,472,038.70 and 87,523,712.20

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Solution

The fourth proportional to 103,648,025.80, 155,472,038.70 and 87,523,712.20 is: 131,285,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,648,025.80 : 155,472,038.70 = 87,523,712.20 : x
  2. Step 2: Convert to fraction form
    103,648,025.80/155,472,038.70 = 87,523,712.20/x
  3. Step 3: Cross multiply
    103,648,025.80x = 155,472,038.70 × 87,523,712.20
  4. Step 4: Simplify right side
    103,648,025.80x = 13,607,489,970,326,062
  5. Step 5: Solve for x
    x = 13,607,489,970,326,062/103,648,025.80
  6. Step 6: Final answer
    x = 131,285,568.30

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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.