Home / 127,792.47-176,346.41-70,431.61

Finding the Fourth Proportional to 127,792.47, 176,346.41 and 70,431.61

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Solution

The fourth proportional to 127,792.47, 176,346.41 and 70,431.61 is: 97,191.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,792.47 : 176,346.41 = 70,431.61 : x
  2. Step 2: Convert to fraction form
    127,792.47/176,346.41 = 70,431.61/x
  3. Step 3: Cross multiply
    127,792.47x = 176,346.41 × 70,431.61
  4. Step 4: Simplify right side
    127,792.47x = 12,420,361,221.86
  5. Step 5: Solve for x
    x = 12,420,361,221.86/127,792.47
  6. Step 6: Final answer
    x = 97,191.65

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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.