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Finding the Fourth Proportional to 162,358.78, 224,050.98 and 90,739.40

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Solution

The fourth proportional to 162,358.78, 224,050.98 and 90,739.40 is: 125,218.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,358.78 : 224,050.98 = 90,739.40 : x
  2. Step 2: Convert to fraction form
    162,358.78/224,050.98 = 90,739.40/x
  3. Step 3: Cross multiply
    162,358.78x = 224,050.98 × 90,739.40
  4. Step 4: Simplify right side
    162,358.78x = 20,330,251,494.61
  5. Step 5: Solve for x
    x = 20,330,251,494.61/162,358.78
  6. Step 6: Final answer
    x = 125,218.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.