Home / 162,008.18-243,001.47-77,828.66

Finding the Fourth Proportional to 162,008.18, 243,001.47 and 77,828.66

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Solution

The fourth proportional to 162,008.18, 243,001.47 and 77,828.66 is: 116,737.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,008.18 : 243,001.47 = 77,828.66 : x
  2. Step 2: Convert to fraction form
    162,008.18/243,001.47 = 77,828.66/x
  3. Step 3: Cross multiply
    162,008.18x = 243,001.47 × 77,828.66
  4. Step 4: Simplify right side
    162,008.18x = 18,912,478,788.13
  5. Step 5: Solve for x
    x = 18,912,478,788.13/162,008.18
  6. Step 6: Final answer
    x = 116,737.80

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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.