Home / 131,139.13-195,962.12-98,468.32

Finding the Fourth Proportional to 131,139.13, 195,962.12 and 98,468.32

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Solution

The fourth proportional to 131,139.13, 195,962.12 and 98,468.32 is: 147,141.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,139.13 : 195,962.12 = 98,468.32 : x
  2. Step 2: Convert to fraction form
    131,139.13/195,962.12 = 98,468.32/x
  3. Step 3: Cross multiply
    131,139.13x = 195,962.12 × 98,468.32
  4. Step 4: Simplify right side
    131,139.13x = 19,296,060,740.04
  5. Step 5: Solve for x
    x = 19,296,060,740.04/131,139.13
  6. Step 6: Final answer
    x = 147,141.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.