Home / 127,830.42-176,406.57-74,147.22

Finding the Fourth Proportional to 127,830.42, 176,406.57 and 74,147.22

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Solution

The fourth proportional to 127,830.42, 176,406.57 and 74,147.22 is: 102,323.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,830.42 : 176,406.57 = 74,147.22 : x
  2. Step 2: Convert to fraction form
    127,830.42/176,406.57 = 74,147.22/x
  3. Step 3: Cross multiply
    127,830.42x = 176,406.57 × 74,147.22
  4. Step 4: Simplify right side
    127,830.42x = 13,080,056,755.24
  5. Step 5: Solve for x
    x = 13,080,056,755.24/127,830.42
  6. Step 6: Final answer
    x = 102,323.51

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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.