Home / 121,014.34-167,017.26-72,618.46

Finding the Fourth Proportional to 121,014.34, 167,017.26 and 72,618.46

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Solution

The fourth proportional to 121,014.34, 167,017.26 and 72,618.46 is: 100,223.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,014.34 : 167,017.26 = 72,618.46 : x
  2. Step 2: Convert to fraction form
    121,014.34/167,017.26 = 72,618.46/x
  3. Step 3: Cross multiply
    121,014.34x = 167,017.26 × 72,618.46
  4. Step 4: Simplify right side
    121,014.34x = 12,128,536,214.62
  5. Step 5: Solve for x
    x = 12,128,536,214.62/121,014.34
  6. Step 6: Final answer
    x = 100,223.96

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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.