Home / 155,925.29-215,176.86-87,942.13

Finding the Fourth Proportional to 155,925.29, 215,176.86 and 87,942.13

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Solution

The fourth proportional to 155,925.29, 215,176.86 and 87,942.13 is: 121,360.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,925.29 : 215,176.86 = 87,942.13 : x
  2. Step 2: Convert to fraction form
    155,925.29/215,176.86 = 87,942.13/x
  3. Step 3: Cross multiply
    155,925.29x = 215,176.86 × 87,942.13
  4. Step 4: Simplify right side
    155,925.29x = 18,923,110,857.17
  5. Step 5: Solve for x
    x = 18,923,110,857.17/155,925.29
  6. Step 6: Final answer
    x = 121,360.11

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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.