Home / 127,840.32-176,420.46-71,255.28

Finding the Fourth Proportional to 127,840.32, 176,420.46 and 71,255.28

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Solution

The fourth proportional to 127,840.32, 176,420.46 and 71,255.28 is: 98,332.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,840.32 : 176,420.46 = 71,255.28 : x
  2. Step 2: Convert to fraction form
    127,840.32/176,420.46 = 71,255.28/x
  3. Step 3: Cross multiply
    127,840.32x = 176,420.46 × 71,255.28
  4. Step 4: Simplify right side
    127,840.32x = 12,570,889,275.03
  5. Step 5: Solve for x
    x = 12,570,889,275.03/127,840.32
  6. Step 6: Final answer
    x = 98,332.74

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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.