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Finding the Fourth Proportional to 144,758.78, 216,842.77 and 74,490.47

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Solution

The fourth proportional to 144,758.78, 216,842.77 and 74,490.47 is: 111,583.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,758.78 : 216,842.77 = 74,490.47 : x
  2. Step 2: Convert to fraction form
    144,758.78/216,842.77 = 74,490.47/x
  3. Step 3: Cross multiply
    144,758.78x = 216,842.77 × 74,490.47
  4. Step 4: Simplify right side
    144,758.78x = 16,152,719,675.46
  5. Step 5: Solve for x
    x = 16,152,719,675.46/144,758.78
  6. Step 6: Final answer
    x = 111,583.70

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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.