Home / 128,040.46-176,695.98-71,451.82

Finding the Fourth Proportional to 128,040.46, 176,695.98 and 71,451.82

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Solution

The fourth proportional to 128,040.46, 176,695.98 and 71,451.82 is: 98,603.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,040.46 : 176,695.98 = 71,451.82 : x
  2. Step 2: Convert to fraction form
    128,040.46/176,695.98 = 71,451.82/x
  3. Step 3: Cross multiply
    128,040.46x = 176,695.98 × 71,451.82
  4. Step 4: Simplify right side
    128,040.46x = 12,625,249,357.68
  5. Step 5: Solve for x
    x = 12,625,249,357.68/128,040.46
  6. Step 6: Final answer
    x = 98,603.59

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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.