Home / 137,140.10-205,710.15-99,523.70

Finding the Fourth Proportional to 137,140.10, 205,710.15 and 99,523.70

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Solution

The fourth proportional to 137,140.10, 205,710.15 and 99,523.70 is: 149,285.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,140.10 : 205,710.15 = 99,523.70 : x
  2. Step 2: Convert to fraction form
    137,140.10/205,710.15 = 99,523.70/x
  3. Step 3: Cross multiply
    137,140.10x = 205,710.15 × 99,523.70
  4. Step 4: Simplify right side
    137,140.10x = 20,473,035,255.56
  5. Step 5: Solve for x
    x = 20,473,035,255.56/137,140.10
  6. Step 6: Final answer
    x = 149,285.55

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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.