Home / 127,807.81-176,375.48-74,124.66

Finding the Fourth Proportional to 127,807.81, 176,375.48 and 74,124.66

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Solution

The fourth proportional to 127,807.81, 176,375.48 and 74,124.66 is: 102,292.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,807.81 : 176,375.48 = 74,124.66 : x
  2. Step 2: Convert to fraction form
    127,807.81/176,375.48 = 74,124.66/x
  3. Step 3: Cross multiply
    127,807.81x = 176,375.48 × 74,124.66
  4. Step 4: Simplify right side
    127,807.81x = 13,073,772,487.34
  5. Step 5: Solve for x
    x = 13,073,772,487.34/127,807.81
  6. Step 6: Final answer
    x = 102,292.44

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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.