Home / 121,153.30-167,196.48-67,434.90

Finding the Fourth Proportional to 121,153.30, 167,196.48 and 67,434.90

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Solution

The fourth proportional to 121,153.30, 167,196.48 and 67,434.90 is: 93,062.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,153.30 : 167,196.48 = 67,434.90 : x
  2. Step 2: Convert to fraction form
    121,153.30/167,196.48 = 67,434.90/x
  3. Step 3: Cross multiply
    121,153.30x = 167,196.48 × 67,434.90
  4. Step 4: Simplify right side
    121,153.30x = 11,274,877,909.15
  5. Step 5: Solve for x
    x = 11,274,877,909.15/121,153.30
  6. Step 6: Final answer
    x = 93,062.90

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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.