Home / 157,205.12-216,936.30-85,585.46

Finding the Fourth Proportional to 157,205.12, 216,936.30 and 85,585.46

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Solution

The fourth proportional to 157,205.12, 216,936.30 and 85,585.46 is: 118,104.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,205.12 : 216,936.30 = 85,585.46 : x
  2. Step 2: Convert to fraction form
    157,205.12/216,936.30 = 85,585.46/x
  3. Step 3: Cross multiply
    157,205.12x = 216,936.30 × 85,585.46
  4. Step 4: Simplify right side
    157,205.12x = 18,566,593,026.20
  5. Step 5: Solve for x
    x = 18,566,593,026.20/157,205.12
  6. Step 6: Final answer
    x = 118,104.25

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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.