Home / 155,732.39-214,915.17-87,750.17

Finding the Fourth Proportional to 155,732.39, 214,915.17 and 87,750.17

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Solution

The fourth proportional to 155,732.39, 214,915.17 and 87,750.17 is: 121,097.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,732.39 : 214,915.17 = 87,750.17 : x
  2. Step 2: Convert to fraction form
    155,732.39/214,915.17 = 87,750.17/x
  3. Step 3: Cross multiply
    155,732.39x = 214,915.17 × 87,750.17
  4. Step 4: Simplify right side
    155,732.39x = 18,858,841,628.50
  5. Step 5: Solve for x
    x = 18,858,841,628.50/155,732.39
  6. Step 6: Final answer
    x = 121,097.75

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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.