Home / 121,116.18-167,170-93,838.30

Finding the Fourth Proportional to 121,116.18, 167,170 and 93,838.30

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Solution

The fourth proportional to 121,116.18, 167,170 and 93,838.30 is: 129,519.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,116.18 : 167,170 = 93,838.30 : x
  2. Step 2: Convert to fraction form
    121,116.18/167,170 = 93,838.30/x
  3. Step 3: Cross multiply
    121,116.18x = 167,170 × 93,838.30
  4. Step 4: Simplify right side
    121,116.18x = 15,686,948,611
  5. Step 5: Solve for x
    x = 15,686,948,611/121,116.18
  6. Step 6: Final answer
    x = 129,519.84

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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.