Home / 103,500.15-155,250.23-84,801.30

Finding the Fourth Proportional to 103,500.15, 155,250.23 and 84,801.30

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Solution

The fourth proportional to 103,500.15, 155,250.23 and 84,801.30 is: 127,201.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,500.15 : 155,250.23 = 84,801.30 : x
  2. Step 2: Convert to fraction form
    103,500.15/155,250.23 = 84,801.30/x
  3. Step 3: Cross multiply
    103,500.15x = 155,250.23 × 84,801.30
  4. Step 4: Simplify right side
    103,500.15x = 13,165,420,905.29
  5. Step 5: Solve for x
    x = 13,165,420,905.29/103,500.15
  6. Step 6: Final answer
    x = 127,201.95

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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.