Home / 121,320.18-167,421.40-67,604.69

Finding the Fourth Proportional to 121,320.18, 167,421.40 and 67,604.69

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Solution

The fourth proportional to 121,320.18, 167,421.40 and 67,604.69 is: 93,294.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,320.18 : 167,421.40 = 67,604.69 : x
  2. Step 2: Convert to fraction form
    121,320.18/167,421.40 = 67,604.69/x
  3. Step 3: Cross multiply
    121,320.18x = 167,421.40 × 67,604.69
  4. Step 4: Simplify right side
    121,320.18x = 11,318,472,095.91
  5. Step 5: Solve for x
    x = 11,318,472,095.91/121,320.18
  6. Step 6: Final answer
    x = 93,294.22

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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.