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Finding the Fourth Proportional to 181,407.32, 250,348.07 and 99,739.00

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Solution

The fourth proportional to 181,407.32, 250,348.07 and 99,739.00 is: 137,643.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,407.32 : 250,348.07 = 99,739.00 : x
  2. Step 2: Convert to fraction form
    181,407.32/250,348.07 = 99,739.00/x
  3. Step 3: Cross multiply
    181,407.32x = 250,348.07 × 99,739.00
  4. Step 4: Simplify right side
    181,407.32x = 24,969,464,746.77
  5. Step 5: Solve for x
    x = 24,969,464,746.77/181,407.32
  6. Step 6: Final answer
    x = 137,643.09

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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.