Home / 131,465.48-181,459.53-77,769.17

Finding the Fourth Proportional to 131,465.48, 181,459.53 and 77,769.17

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Solution

The fourth proportional to 131,465.48, 181,459.53 and 77,769.17 is: 107,343.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,465.48 : 181,459.53 = 77,769.17 : x
  2. Step 2: Convert to fraction form
    131,465.48/181,459.53 = 77,769.17/x
  3. Step 3: Cross multiply
    131,465.48x = 181,459.53 × 77,769.17
  4. Step 4: Simplify right side
    131,465.48x = 14,111,957,036.69
  5. Step 5: Solve for x
    x = 14,111,957,036.69/131,465.48
  6. Step 6: Final answer
    x = 107,343.44

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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.