Home / 127,845.12-176,426.46-71,255.28

Finding the Fourth Proportional to 127,845.12, 176,426.46 and 71,255.28

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Solution

The fourth proportional to 127,845.12, 176,426.46 and 71,255.28 is: 98,332.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,845.12 : 176,426.46 = 71,255.28 : x
  2. Step 2: Convert to fraction form
    127,845.12/176,426.46 = 71,255.28/x
  3. Step 3: Cross multiply
    127,845.12x = 176,426.46 × 71,255.28
  4. Step 4: Simplify right side
    127,845.12x = 12,571,316,806.71
  5. Step 5: Solve for x
    x = 12,571,316,806.71/127,845.12
  6. Step 6: Final answer
    x = 98,332.39

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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.