Home / 124,739,144.28-172,161,258.66-72,558,427.50

Finding the Fourth Proportional to 124,739,144.28, 172,161,258.66 and 72,558,427.50

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Solution

The fourth proportional to 124,739,144.28, 172,161,258.66 and 72,558,427.50 is: 100,142,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,739,144.28 : 172,161,258.66 = 72,558,427.50 : x
  2. Step 2: Convert to fraction form
    124,739,144.28/172,161,258.66 = 72,558,427.50/x
  3. Step 3: Cross multiply
    124,739,144.28x = 172,161,258.66 × 72,558,427.50
  4. Step 4: Simplify right side
    124,739,144.28x = 12,491,750,204,790,356
  5. Step 5: Solve for x
    x = 12,491,750,204,790,356/124,739,144.28
  6. Step 6: Final answer
    x = 100,142,984.60

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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.