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Finding the Fourth Proportional to 131,373.99, 181,231.16 and 77,633.01

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Solution

The fourth proportional to 131,373.99, 181,231.16 and 77,633.01 is: 107,095.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,373.99 : 181,231.16 = 77,633.01 : x
  2. Step 2: Convert to fraction form
    131,373.99/181,231.16 = 77,633.01/x
  3. Step 3: Cross multiply
    131,373.99x = 181,231.16 × 77,633.01
  4. Step 4: Simplify right side
    131,373.99x = 14,069,520,068.43
  5. Step 5: Solve for x
    x = 14,069,520,068.43/131,373.99
  6. Step 6: Final answer
    x = 107,095.17

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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.