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Finding the Fourth Proportional to 162,032.20, 243,048.30 and 83,154.40

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Solution

The fourth proportional to 162,032.20, 243,048.30 and 83,154.40 is: 124,731.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,032.20 : 243,048.30 = 83,154.40 : x
  2. Step 2: Convert to fraction form
    162,032.20/243,048.30 = 83,154.40/x
  3. Step 3: Cross multiply
    162,032.20x = 243,048.30 × 83,154.40
  4. Step 4: Simplify right side
    162,032.20x = 20,210,535,557.52
  5. Step 5: Solve for x
    x = 20,210,535,557.52/162,032.20
  6. Step 6: Final answer
    x = 124,731.60

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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.