Home / 127,632.32-176,138.40-71,047.28

Finding the Fourth Proportional to 127,632.32, 176,138.40 and 71,047.28

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Solution

The fourth proportional to 127,632.32, 176,138.40 and 71,047.28 is: 98,048.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,632.32 : 176,138.40 = 71,047.28 : x
  2. Step 2: Convert to fraction form
    127,632.32/176,138.40 = 71,047.28/x
  3. Step 3: Cross multiply
    127,632.32x = 176,138.40 × 71,047.28
  4. Step 4: Simplify right side
    127,632.32x = 12,514,154,223.55
  5. Step 5: Solve for x
    x = 12,514,154,223.55/127,632.32
  6. Step 6: Final answer
    x = 98,048.47

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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.