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Finding the Fourth Proportional to 180,221.06, 248,695.02 and 99,643.74

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Solution

The fourth proportional to 180,221.06, 248,695.02 and 99,643.74 is: 137,502.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,221.06 : 248,695.02 = 99,643.74 : x
  2. Step 2: Convert to fraction form
    180,221.06/248,695.02 = 99,643.74/x
  3. Step 3: Cross multiply
    180,221.06x = 248,695.02 × 99,643.74
  4. Step 4: Simplify right side
    180,221.06x = 24,780,901,912.17
  5. Step 5: Solve for x
    x = 24,780,901,912.17/180,221.06
  6. Step 6: Final answer
    x = 137,502.81

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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.