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Finding the Fourth Proportional to 163,042.40, 224,998.30 and 90,456.30

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Solution

The fourth proportional to 163,042.40, 224,998.30 and 90,456.30 is: 124,829.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,042.40 : 224,998.30 = 90,456.30 : x
  2. Step 2: Convert to fraction form
    163,042.40/224,998.30 = 90,456.30/x
  3. Step 3: Cross multiply
    163,042.40x = 224,998.30 × 90,456.30
  4. Step 4: Simplify right side
    163,042.40x = 20,352,513,498.15
  5. Step 5: Solve for x
    x = 20,352,513,498.15/163,042.40
  6. Step 6: Final answer
    x = 124,829.57

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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.