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Finding the Fourth Proportional to 162,398.72, 224,114.26 and 90,790.66

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Solution

The fourth proportional to 162,398.72, 224,114.26 and 90,790.66 is: 125,293.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,398.72 : 224,114.26 = 90,790.66 : x
  2. Step 2: Convert to fraction form
    162,398.72/224,114.26 = 90,790.66/x
  3. Step 3: Cross multiply
    162,398.72x = 224,114.26 × 90,790.66
  4. Step 4: Simplify right side
    162,398.72x = 20,347,481,580.81
  5. Step 5: Solve for x
    x = 20,347,481,580.81/162,398.72
  6. Step 6: Final answer
    x = 125,293.36

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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.