Home / 162,132.60-243,393.30-91,111.80

Finding the Fourth Proportional to 162,132.60, 243,393.30 and 91,111.80

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Solution

The fourth proportional to 162,132.60, 243,393.30 and 91,111.80 is: 136,776.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,132.60 : 243,393.30 = 91,111.80 : x
  2. Step 2: Convert to fraction form
    162,132.60/243,393.30 = 91,111.80/x
  3. Step 3: Cross multiply
    162,132.60x = 243,393.30 × 91,111.80
  4. Step 4: Simplify right side
    162,132.60x = 22,176,001,670.94
  5. Step 5: Solve for x
    x = 22,176,001,670.94/162,132.60
  6. Step 6: Final answer
    x = 136,776.94

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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.