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Finding the Fourth Proportional to 162,478.69, 224,220.60 and 90,858.88

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Solution

The fourth proportional to 162,478.69, 224,220.60 and 90,858.88 is: 125,385.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,478.69 : 224,220.60 = 90,858.88 : x
  2. Step 2: Convert to fraction form
    162,478.69/224,220.60 = 90,858.88/x
  3. Step 3: Cross multiply
    162,478.69x = 224,220.60 × 90,858.88
  4. Step 4: Simplify right side
    162,478.69x = 20,372,432,588.93
  5. Step 5: Solve for x
    x = 20,372,432,588.93/162,478.69
  6. Step 6: Final answer
    x = 125,385.26

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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.