Home / 127,242.40-175,610.64-76,969.12

Finding the Fourth Proportional to 127,242.40, 175,610.64 and 76,969.12

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Solution

The fourth proportional to 127,242.40, 175,610.64 and 76,969.12 is: 106,227.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,242.40 : 175,610.64 = 76,969.12 : x
  2. Step 2: Convert to fraction form
    127,242.40/175,610.64 = 76,969.12/x
  3. Step 3: Cross multiply
    127,242.40x = 175,610.64 × 76,969.12
  4. Step 4: Simplify right side
    127,242.40x = 13,516,596,423.44
  5. Step 5: Solve for x
    x = 13,516,596,423.44/127,242.40
  6. Step 6: Final answer
    x = 106,227.14

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1.5x scale

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.