Home / 155,965.10-233,947.65-85,106.30

Finding the Fourth Proportional to 155,965.10, 233,947.65 and 85,106.30

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Solution

The fourth proportional to 155,965.10, 233,947.65 and 85,106.30 is: 127,659.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,965.10 : 233,947.65 = 85,106.30 : x
  2. Step 2: Convert to fraction form
    155,965.10/233,947.65 = 85,106.30/x
  3. Step 3: Cross multiply
    155,965.10x = 233,947.65 × 85,106.30
  4. Step 4: Simplify right side
    155,965.10x = 19,910,418,885.20
  5. Step 5: Solve for x
    x = 19,910,418,885.20/155,965.10
  6. Step 6: Final answer
    x = 127,659.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.