Home / 127,981.50-176,592.60-74,254.20

Finding the Fourth Proportional to 127,981.50, 176,592.60 and 74,254.20

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Solution

The fourth proportional to 127,981.50, 176,592.60 and 74,254.20 is: 102,458.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,981.50 : 176,592.60 = 74,254.20 : x
  2. Step 2: Convert to fraction form
    127,981.50/176,592.60 = 74,254.20/x
  3. Step 3: Cross multiply
    127,981.50x = 176,592.60 × 74,254.20
  4. Step 4: Simplify right side
    127,981.50x = 13,112,742,238.92
  5. Step 5: Solve for x
    x = 13,112,742,238.92/127,981.50
  6. Step 6: Final answer
    x = 102,458.11

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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.