Home / 121,113.29-167,135.13-67,397.39

Finding the Fourth Proportional to 121,113.29, 167,135.13 and 67,397.39

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Solution

The fourth proportional to 121,113.29, 167,135.13 and 67,397.39 is: 93,007.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,113.29 : 167,135.13 = 67,397.39 : x
  2. Step 2: Convert to fraction form
    121,113.29/167,135.13 = 67,397.39/x
  3. Step 3: Cross multiply
    121,113.29x = 167,135.13 × 67,397.39
  4. Step 4: Simplify right side
    121,113.29x = 11,264,470,703.64
  5. Step 5: Solve for x
    x = 11,264,470,703.64/121,113.29
  6. Step 6: Final answer
    x = 93,007.72

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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.