Home / 121,156.20-167,195.34-67,445.91

Finding the Fourth Proportional to 121,156.20, 167,195.34 and 67,445.91

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Solution

The fourth proportional to 121,156.20, 167,195.34 and 67,445.91 is: 93,075.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,156.20 : 167,195.34 = 67,445.91 : x
  2. Step 2: Convert to fraction form
    121,156.20/167,195.34 = 67,445.91/x
  3. Step 3: Cross multiply
    121,156.20x = 167,195.34 × 67,445.91
  4. Step 4: Simplify right side
    121,156.20x = 11,276,641,854.06
  5. Step 5: Solve for x
    x = 11,276,641,854.06/121,156.20
  6. Step 6: Final answer
    x = 93,075.24

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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.