Home / 131,425.13-181,366.74-70,995.77

Finding the Fourth Proportional to 131,425.13, 181,366.74 and 70,995.77

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Solution

The fourth proportional to 131,425.13, 181,366.74 and 70,995.77 is: 97,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,425.13 : 181,366.74 = 70,995.77 : x
  2. Step 2: Convert to fraction form
    131,425.13/181,366.74 = 70,995.77/x
  3. Step 3: Cross multiply
    131,425.13x = 181,366.74 × 70,995.77
  4. Step 4: Simplify right side
    131,425.13x = 12,876,271,358.69
  5. Step 5: Solve for x
    x = 12,876,271,358.69/131,425.13
  6. Step 6: Final answer
    x = 97,974.20

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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.