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Finding the Fourth Proportional to 152,055.80, 209,865.48 and 88,402.76

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Solution

The fourth proportional to 152,055.80, 209,865.48 and 88,402.76 is: 122,012.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,055.80 : 209,865.48 = 88,402.76 : x
  2. Step 2: Convert to fraction form
    152,055.80/209,865.48 = 88,402.76/x
  3. Step 3: Cross multiply
    152,055.80x = 209,865.48 × 88,402.76
  4. Step 4: Simplify right side
    152,055.80x = 18,552,687,660.72
  5. Step 5: Solve for x
    x = 18,552,687,660.72/152,055.80
  6. Step 6: Final answer
    x = 122,012.36

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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.