Home / 127,726.25-176,253.77-74,001.69

Finding the Fourth Proportional to 127,726.25, 176,253.77 and 74,001.69

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Solution

The fourth proportional to 127,726.25, 176,253.77 and 74,001.69 is: 102,117.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,726.25 : 176,253.77 = 74,001.69 : x
  2. Step 2: Convert to fraction form
    127,726.25/176,253.77 = 74,001.69/x
  3. Step 3: Cross multiply
    127,726.25x = 176,253.77 × 74,001.69
  4. Step 4: Simplify right side
    127,726.25x = 13,043,076,478.86
  5. Step 5: Solve for x
    x = 13,043,076,478.86/127,726.25
  6. Step 6: Final answer
    x = 102,117.43

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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.