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Finding the Fourth Proportional to 151,210.80, 208,657.35 and 87,552.90

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Solution

The fourth proportional to 151,210.80, 208,657.35 and 87,552.90 is: 120,815.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,210.80 : 208,657.35 = 87,552.90 : x
  2. Step 2: Convert to fraction form
    151,210.80/208,657.35 = 87,552.90/x
  3. Step 3: Cross multiply
    151,210.80x = 208,657.35 × 87,552.90
  4. Step 4: Simplify right side
    151,210.80x = 18,268,556,098.82
  5. Step 5: Solve for x
    x = 18,268,556,098.82/151,210.80
  6. Step 6: Final answer
    x = 120,815.15

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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.