Home / 155,878.26-215,114.28-87,898.48

Finding the Fourth Proportional to 155,878.26, 215,114.28 and 87,898.48

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Solution

The fourth proportional to 155,878.26, 215,114.28 and 87,898.48 is: 121,301.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,878.26 : 215,114.28 = 87,898.48 : x
  2. Step 2: Convert to fraction form
    155,878.26/215,114.28 = 87,898.48/x
  3. Step 3: Cross multiply
    155,878.26x = 215,114.28 × 87,898.48
  4. Step 4: Simplify right side
    155,878.26x = 18,908,218,238.29
  5. Step 5: Solve for x
    x = 18,908,218,238.29/155,878.26
  6. Step 6: Final answer
    x = 121,301.19

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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.