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Finding the Fourth Proportional to 137,064.99, 205,617.93 and 42,287.31

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Solution

The fourth proportional to 137,064.99, 205,617.93 and 42,287.31 is: 63,437.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,064.99 : 205,617.93 = 42,287.31 : x
  2. Step 2: Convert to fraction form
    137,064.99/205,617.93 = 42,287.31/x
  3. Step 3: Cross multiply
    137,064.99x = 205,617.93 × 42,287.31
  4. Step 4: Simplify right side
    137,064.99x = 8,695,029,147.47
  5. Step 5: Solve for x
    x = 8,695,029,147.47/137,064.99
  6. Step 6: Final answer
    x = 63,437.27

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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.