Home / 149,116.34-205,778.95-88,685.66

Finding the Fourth Proportional to 149,116.34, 205,778.95 and 88,685.66

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Solution

The fourth proportional to 149,116.34, 205,778.95 and 88,685.66 is: 122,385.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,116.34 : 205,778.95 = 88,685.66 : x
  2. Step 2: Convert to fraction form
    149,116.34/205,778.95 = 88,685.66/x
  3. Step 3: Cross multiply
    149,116.34x = 205,778.95 × 88,685.66
  4. Step 4: Simplify right side
    149,116.34x = 18,249,640,744.25
  5. Step 5: Solve for x
    x = 18,249,640,744.25/149,116.34
  6. Step 6: Final answer
    x = 122,385.25

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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.