Home / 124,780.10-172,201.95-70,350.53

Finding the Fourth Proportional to 124,780.10, 172,201.95 and 70,350.53

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Solution

The fourth proportional to 124,780.10, 172,201.95 and 70,350.53 is: 97,086.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,780.10 : 172,201.95 = 70,350.53 : x
  2. Step 2: Convert to fraction form
    124,780.10/172,201.95 = 70,350.53/x
  3. Step 3: Cross multiply
    124,780.10x = 172,201.95 × 70,350.53
  4. Step 4: Simplify right side
    124,780.10x = 12,114,497,588.52
  5. Step 5: Solve for x
    x = 12,114,497,588.52/124,780.10
  6. Step 6: Final answer
    x = 97,086.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.