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Finding the Fourth Proportional to 131,693.99, 181,737.50 and 74,345.39

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Solution

The fourth proportional to 131,693.99, 181,737.50 and 74,345.39 is: 102,596.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,693.99 : 181,737.50 = 74,345.39 : x
  2. Step 2: Convert to fraction form
    131,693.99/181,737.50 = 74,345.39/x
  3. Step 3: Cross multiply
    131,693.99x = 181,737.50 × 74,345.39
  4. Step 4: Simplify right side
    131,693.99x = 13,511,344,034.71
  5. Step 5: Solve for x
    x = 13,511,344,034.71/131,693.99
  6. Step 6: Final answer
    x = 102,596.51

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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.