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Finding the Fourth Proportional to 162,340.88, 224,029.76 and 90,720.88

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Solution

The fourth proportional to 162,340.88, 224,029.76 and 90,720.88 is: 125,194.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,340.88 : 224,029.76 = 90,720.88 : x
  2. Step 2: Convert to fraction form
    162,340.88/224,029.76 = 90,720.88/x
  3. Step 3: Cross multiply
    162,340.88x = 224,029.76 × 90,720.88
  4. Step 4: Simplify right side
    162,340.88x = 20,324,176,973.39
  5. Step 5: Solve for x
    x = 20,324,176,973.39/162,340.88
  6. Step 6: Final answer
    x = 125,194.45

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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.