Home / 127,968.12-176,599.77-71,378.28

Finding the Fourth Proportional to 127,968.12, 176,599.77 and 71,378.28

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Solution

The fourth proportional to 127,968.12, 176,599.77 and 71,378.28 is: 98,504.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,968.12 : 176,599.77 = 71,378.28 : x
  2. Step 2: Convert to fraction form
    127,968.12/176,599.77 = 71,378.28/x
  3. Step 3: Cross multiply
    127,968.12x = 176,599.77 × 71,378.28
  4. Step 4: Simplify right side
    127,968.12x = 12,605,387,831.00
  5. Step 5: Solve for x
    x = 12,605,387,831.00/127,968.12
  6. Step 6: Final answer
    x = 98,504.13

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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.