Home / 99,750.06-137,655.02-63,940.05

Finding the Fourth Proportional to 99,750.06, 137,655.02 and 63,940.05

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Solution

The fourth proportional to 99,750.06, 137,655.02 and 63,940.05 is: 88,237.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,750.06 : 137,655.02 = 63,940.05 : x
  2. Step 2: Convert to fraction form
    99,750.06/137,655.02 = 63,940.05/x
  3. Step 3: Cross multiply
    99,750.06x = 137,655.02 × 63,940.05
  4. Step 4: Simplify right side
    99,750.06x = 8,801,668,861.55
  5. Step 5: Solve for x
    x = 8,801,668,861.55/99,750.06
  6. Step 6: Final answer
    x = 88,237.23

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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.