Home / 138,425.19-207,466.47-98,380.35

Finding the Fourth Proportional to 138,425.19, 207,466.47 and 98,380.35

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Solution

The fourth proportional to 138,425.19, 207,466.47 and 98,380.35 is: 147,448.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,425.19 : 207,466.47 = 98,380.35 : x
  2. Step 2: Convert to fraction form
    138,425.19/207,466.47 = 98,380.35/x
  3. Step 3: Cross multiply
    138,425.19x = 207,466.47 × 98,380.35
  4. Step 4: Simplify right side
    138,425.19x = 20,410,623,931.86
  5. Step 5: Solve for x
    x = 20,410,623,931.86/138,425.19
  6. Step 6: Final answer
    x = 147,448.77

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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.