Home / 127,730.04-176,254.02-74,031.90

Finding the Fourth Proportional to 127,730.04, 176,254.02 and 74,031.90

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Solution

The fourth proportional to 127,730.04, 176,254.02 and 74,031.90 is: 102,156.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,730.04 : 176,254.02 = 74,031.90 : x
  2. Step 2: Convert to fraction form
    127,730.04/176,254.02 = 74,031.90/x
  3. Step 3: Cross multiply
    127,730.04x = 176,254.02 × 74,031.90
  4. Step 4: Simplify right side
    127,730.04x = 13,048,419,983.24
  5. Step 5: Solve for x
    x = 13,048,419,983.24/127,730.04
  6. Step 6: Final answer
    x = 102,156.24

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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.