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Finding the Fourth Proportional to 103,386.60, 155,079.90 and 94,201.20

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Solution

The fourth proportional to 103,386.60, 155,079.90 and 94,201.20 is: 141,301.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,386.60 : 155,079.90 = 94,201.20 : x
  2. Step 2: Convert to fraction form
    103,386.60/155,079.90 = 94,201.20/x
  3. Step 3: Cross multiply
    103,386.60x = 155,079.90 × 94,201.20
  4. Step 4: Simplify right side
    103,386.60x = 14,608,712,675.88
  5. Step 5: Solve for x
    x = 14,608,712,675.88/103,386.60
  6. Step 6: Final answer
    x = 141,301.80

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1.5x scale

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.