Home / 155,926.41-215,178.15-87,943.18

Finding the Fourth Proportional to 155,926.41, 215,178.15 and 87,943.18

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Solution

The fourth proportional to 155,926.41, 215,178.15 and 87,943.18 is: 121,361.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,926.41 : 215,178.15 = 87,943.18 : x
  2. Step 2: Convert to fraction form
    155,926.41/215,178.15 = 87,943.18/x
  3. Step 3: Cross multiply
    155,926.41x = 215,178.15 × 87,943.18
  4. Step 4: Simplify right side
    155,926.41x = 18,923,450,239.57
  5. Step 5: Solve for x
    x = 18,923,450,239.57/155,926.41
  6. Step 6: Final answer
    x = 121,361.42

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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.