Home / 131,812.20-182,199.96-121,349.52

Finding the Fourth Proportional to 131,812.20, 182,199.96 and 121,349.52

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Solution

The fourth proportional to 131,812.20, 182,199.96 and 121,349.52 is: 167,737.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,812.20 : 182,199.96 = 121,349.52 : x
  2. Step 2: Convert to fraction form
    131,812.20/182,199.96 = 121,349.52/x
  3. Step 3: Cross multiply
    131,812.20x = 182,199.96 × 121,349.52
  4. Step 4: Simplify right side
    131,812.20x = 22,109,877,690.02
  5. Step 5: Solve for x
    x = 22,109,877,690.02/131,812.20
  6. Step 6: Final answer
    x = 167,737.72

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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.