Home / 127,726.77-176,268.42-71,138.16

Finding the Fourth Proportional to 127,726.77, 176,268.42 and 71,138.16

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Solution

The fourth proportional to 127,726.77, 176,268.42 and 71,138.16 is: 98,173.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,726.77 : 176,268.42 = 71,138.16 : x
  2. Step 2: Convert to fraction form
    127,726.77/176,268.42 = 71,138.16/x
  3. Step 3: Cross multiply
    127,726.77x = 176,268.42 × 71,138.16
  4. Step 4: Simplify right side
    127,726.77x = 12,539,411,064.91
  5. Step 5: Solve for x
    x = 12,539,411,064.91/127,726.77
  6. Step 6: Final answer
    x = 98,173.71

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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.