Home / 121,621.26-167,859.18-72,566.04

Finding the Fourth Proportional to 121,621.26, 167,859.18 and 72,566.04

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Solution

The fourth proportional to 121,621.26, 167,859.18 and 72,566.04 is: 100,154.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,621.26 : 167,859.18 = 72,566.04 : x
  2. Step 2: Convert to fraction form
    121,621.26/167,859.18 = 72,566.04/x
  3. Step 3: Cross multiply
    121,621.26x = 167,859.18 × 72,566.04
  4. Step 4: Simplify right side
    121,621.26x = 12,180,875,970.25
  5. Step 5: Solve for x
    x = 12,180,875,970.25/121,621.26
  6. Step 6: Final answer
    x = 100,154.17

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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.