Home / 112,102.53-154,614.02-71,820.04

Finding the Fourth Proportional to 112,102.53, 154,614.02 and 71,820.04

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Solution

The fourth proportional to 112,102.53, 154,614.02 and 71,820.04 is: 99,055.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,102.53 : 154,614.02 = 71,820.04 : x
  2. Step 2: Convert to fraction form
    112,102.53/154,614.02 = 71,820.04/x
  3. Step 3: Cross multiply
    112,102.53x = 154,614.02 × 71,820.04
  4. Step 4: Simplify right side
    112,102.53x = 11,104,385,080.08
  5. Step 5: Solve for x
    x = 11,104,385,080.08/112,102.53
  6. Step 6: Final answer
    x = 99,055.61

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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.