Home / 155,410.59-214,466.28-87,427.61

Finding the Fourth Proportional to 155,410.59, 214,466.28 and 87,427.61

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Solution

The fourth proportional to 155,410.59, 214,466.28 and 87,427.61 is: 120,649.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,410.59 : 214,466.28 = 87,427.61 : x
  2. Step 2: Convert to fraction form
    155,410.59/214,466.28 = 87,427.61/x
  3. Step 3: Cross multiply
    155,410.59x = 214,466.28 × 87,427.61
  4. Step 4: Simplify right side
    155,410.59x = 18,750,273,213.66
  5. Step 5: Solve for x
    x = 18,750,273,213.66/155,410.59
  6. Step 6: Final answer
    x = 120,649.91

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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.