Home / 162,001.60-243,002.40-91,142.80

Finding the Fourth Proportional to 162,001.60, 243,002.40 and 91,142.80

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Solution

The fourth proportional to 162,001.60, 243,002.40 and 91,142.80 is: 136,714.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,001.60 : 243,002.40 = 91,142.80 : x
  2. Step 2: Convert to fraction form
    162,001.60/243,002.40 = 91,142.80/x
  3. Step 3: Cross multiply
    162,001.60x = 243,002.40 × 91,142.80
  4. Step 4: Simplify right side
    162,001.60x = 22,147,919,142.72
  5. Step 5: Solve for x
    x = 22,147,919,142.72/162,001.60
  6. Step 6: Final answer
    x = 136,714.20

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1.5x scale

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.