Home / 127,715.52-176,247.34-74,031.64

Finding the Fourth Proportional to 127,715.52, 176,247.34 and 74,031.64

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Solution

The fourth proportional to 127,715.52, 176,247.34 and 74,031.64 is: 102,163.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,715.52 : 176,247.34 = 74,031.64 : x
  2. Step 2: Convert to fraction form
    127,715.52/176,247.34 = 74,031.64/x
  3. Step 3: Cross multiply
    127,715.52x = 176,247.34 × 74,031.64
  4. Step 4: Simplify right side
    127,715.52x = 13,047,879,625.84
  5. Step 5: Solve for x
    x = 13,047,879,625.84/127,715.52
  6. Step 6: Final answer
    x = 102,163.62

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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.