Home / 123,377.28-185,080-40,271.36

Finding the Fourth Proportional to 123,377.28, 185,080 and 40,271.36

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Solution

The fourth proportional to 123,377.28, 185,080 and 40,271.36 is: 60,411.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,377.28 : 185,080 = 40,271.36 : x
  2. Step 2: Convert to fraction form
    123,377.28/185,080 = 40,271.36/x
  3. Step 3: Cross multiply
    123,377.28x = 185,080 × 40,271.36
  4. Step 4: Simplify right side
    123,377.28x = 7,453,423,308.80
  5. Step 5: Solve for x
    x = 7,453,423,308.80/123,377.28
  6. Step 6: Final answer
    x = 60,411.64

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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.