Home / 121,310.10-167,420.26-67,603.86

Finding the Fourth Proportional to 121,310.10, 167,420.26 and 67,603.86

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Solution

The fourth proportional to 121,310.10, 167,420.26 and 67,603.86 is: 93,300.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,310.10 : 167,420.26 = 67,603.86 : x
  2. Step 2: Convert to fraction form
    121,310.10/167,420.26 = 67,603.86/x
  3. Step 3: Cross multiply
    121,310.10x = 167,420.26 × 67,603.86
  4. Step 4: Simplify right side
    121,310.10x = 11,318,255,818.20
  5. Step 5: Solve for x
    x = 11,318,255,818.20/121,310.10
  6. Step 6: Final answer
    x = 93,300.19

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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.