Home / 127,920.61-176,530.86-71,335.63

Finding the Fourth Proportional to 127,920.61, 176,530.86 and 71,335.63

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Solution

The fourth proportional to 127,920.61, 176,530.86 and 71,335.63 is: 98,443.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,920.61 : 176,530.86 = 71,335.63 : x
  2. Step 2: Convert to fraction form
    127,920.61/176,530.86 = 71,335.63/x
  3. Step 3: Cross multiply
    127,920.61x = 176,530.86 × 71,335.63
  4. Step 4: Simplify right side
    127,920.61x = 12,592,940,112.54
  5. Step 5: Solve for x
    x = 12,592,940,112.54/127,920.61
  6. Step 6: Final answer
    x = 98,443.40

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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.