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Finding the Fourth Proportional to 149,959.60, 224,903.40 and 86,642.80

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Solution

The fourth proportional to 149,959.60, 224,903.40 and 86,642.80 is: 129,943.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,959.60 : 224,903.40 = 86,642.80 : x
  2. Step 2: Convert to fraction form
    149,959.60/224,903.40 = 86,642.80/x
  3. Step 3: Cross multiply
    149,959.60x = 224,903.40 × 86,642.80
  4. Step 4: Simplify right side
    149,959.60x = 19,486,260,305.52
  5. Step 5: Solve for x
    x = 19,486,260,305.52/149,959.60
  6. Step 6: Final answer
    x = 129,943.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.