Home / 102,140.59-153,211.95-31,074.80

Finding the Fourth Proportional to 102,140.59, 153,211.95 and 31,074.80

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Solution

The fourth proportional to 102,140.59, 153,211.95 and 31,074.80 is: 46,612.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,140.59 : 153,211.95 = 31,074.80 : x
  2. Step 2: Convert to fraction form
    102,140.59/153,211.95 = 31,074.80/x
  3. Step 3: Cross multiply
    102,140.59x = 153,211.95 × 31,074.80
  4. Step 4: Simplify right side
    102,140.59x = 4,761,029,937.80
  5. Step 5: Solve for x
    x = 4,761,029,937.80/102,140.59
  6. Step 6: Final answer
    x = 46,612.52

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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.