Home / 151,458.57-209,012.84-87,833.27

Finding the Fourth Proportional to 151,458.57, 209,012.84 and 87,833.27

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Solution

The fourth proportional to 151,458.57, 209,012.84 and 87,833.27 is: 121,209.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,458.57 : 209,012.84 = 87,833.27 : x
  2. Step 2: Convert to fraction form
    151,458.57/209,012.84 = 87,833.27/x
  3. Step 3: Cross multiply
    151,458.57x = 209,012.84 × 87,833.27
  4. Step 4: Simplify right side
    151,458.57x = 18,358,281,621.93
  5. Step 5: Solve for x
    x = 18,358,281,621.93/151,458.57
  6. Step 6: Final answer
    x = 121,209.92

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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.