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Finding the Fourth Proportional to 162,484.80, 243,532.80 and 83,558.40

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Solution

The fourth proportional to 162,484.80, 243,532.80 and 83,558.40 is: 125,237.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,484.80 : 243,532.80 = 83,558.40 : x
  2. Step 2: Convert to fraction form
    162,484.80/243,532.80 = 83,558.40/x
  3. Step 3: Cross multiply
    162,484.80x = 243,532.80 × 83,558.40
  4. Step 4: Simplify right side
    162,484.80x = 20,349,211,115.52
  5. Step 5: Solve for x
    x = 20,349,211,115.52/162,484.80
  6. Step 6: Final answer
    x = 125,237.63

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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.