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Finding the Fourth Proportional to 162,029.40, 243,044.10 and 99,043.80

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Solution

The fourth proportional to 162,029.40, 243,044.10 and 99,043.80 is: 148,565.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,029.40 : 243,044.10 = 99,043.80 : x
  2. Step 2: Convert to fraction form
    162,029.40/243,044.10 = 99,043.80/x
  3. Step 3: Cross multiply
    162,029.40x = 243,044.10 × 99,043.80
  4. Step 4: Simplify right side
    162,029.40x = 24,072,011,231.58
  5. Step 5: Solve for x
    x = 24,072,011,231.58/162,029.40
  6. Step 6: Final answer
    x = 148,565.70

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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.