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Finding the Fourth Proportional to 162,117.60, 243,176.40 and 43,800.90

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Solution

The fourth proportional to 162,117.60, 243,176.40 and 43,800.90 is: 65,701.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,117.60 : 243,176.40 = 43,800.90 : x
  2. Step 2: Convert to fraction form
    162,117.60/243,176.40 = 43,800.90/x
  3. Step 3: Cross multiply
    162,117.60x = 243,176.40 × 43,800.90
  4. Step 4: Simplify right side
    162,117.60x = 10,651,345,178.76
  5. Step 5: Solve for x
    x = 10,651,345,178.76/162,117.60
  6. Step 6: Final answer
    x = 65,701.35

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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.