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Finding the Fourth Proportional to 162,519.60, 243,973.80 and 91,498.80

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Solution

The fourth proportional to 162,519.60, 243,973.80 and 91,498.80 is: 137,357.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,519.60 : 243,973.80 = 91,498.80 : x
  2. Step 2: Convert to fraction form
    162,519.60/243,973.80 = 91,498.80/x
  3. Step 3: Cross multiply
    162,519.60x = 243,973.80 × 91,498.80
  4. Step 4: Simplify right side
    162,519.60x = 22,323,309,931.44
  5. Step 5: Solve for x
    x = 22,323,309,931.44/162,519.60
  6. Step 6: Final answer
    x = 137,357.65

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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.