Home / 117,058.61-161,512.77-71,117.33

Finding the Fourth Proportional to 117,058.61, 161,512.77 and 71,117.33

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Solution

The fourth proportional to 117,058.61, 161,512.77 and 71,117.33 is: 98,124.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,058.61 : 161,512.77 = 71,117.33 : x
  2. Step 2: Convert to fraction form
    117,058.61/161,512.77 = 71,117.33/x
  3. Step 3: Cross multiply
    117,058.61x = 161,512.77 × 71,117.33
  4. Step 4: Simplify right side
    117,058.61x = 11,486,356,155.74
  5. Step 5: Solve for x
    x = 11,486,356,155.74/117,058.61
  6. Step 6: Final answer
    x = 98,124.83

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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.