Home / 121,157.95-167,196.18-67,442.89

Finding the Fourth Proportional to 121,157.95, 167,196.18 and 67,442.89

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Solution

The fourth proportional to 121,157.95, 167,196.18 and 67,442.89 is: 93,070.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,157.95 : 167,196.18 = 67,442.89 : x
  2. Step 2: Convert to fraction form
    121,157.95/167,196.18 = 67,442.89/x
  3. Step 3: Cross multiply
    121,157.95x = 167,196.18 × 67,442.89
  4. Step 4: Simplify right side
    121,157.95x = 11,276,193,576.16
  5. Step 5: Solve for x
    x = 11,276,193,576.16/121,157.95
  6. Step 6: Final answer
    x = 93,070.19

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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.