Home / 113,438.80-170,158.20-101,191.60

Finding the Fourth Proportional to 113,438.80, 170,158.20 and 101,191.60

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Solution

The fourth proportional to 113,438.80, 170,158.20 and 101,191.60 is: 151,787.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,438.80 : 170,158.20 = 101,191.60 : x
  2. Step 2: Convert to fraction form
    113,438.80/170,158.20 = 101,191.60/x
  3. Step 3: Cross multiply
    113,438.80x = 170,158.20 × 101,191.60
  4. Step 4: Simplify right side
    113,438.80x = 17,218,580,511.12
  5. Step 5: Solve for x
    x = 17,218,580,511.12/113,438.80
  6. Step 6: Final answer
    x = 151,787.40

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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.