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Finding the Fourth Proportional to 131,572.65, 181,559.27 and 77,848.32

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Solution

The fourth proportional to 131,572.65, 181,559.27 and 77,848.32 is: 107,424.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,572.65 : 181,559.27 = 77,848.32 : x
  2. Step 2: Convert to fraction form
    131,572.65/181,559.27 = 77,848.32/x
  3. Step 3: Cross multiply
    131,572.65x = 181,559.27 × 77,848.32
  4. Step 4: Simplify right side
    131,572.65x = 14,134,083,493.49
  5. Step 5: Solve for x
    x = 14,134,083,493.49/131,572.65
  6. Step 6: Final answer
    x = 107,424.17

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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.