Home / 113,485.15-170,282.40-80,133.40

Finding the Fourth Proportional to 113,485.15, 170,282.40 and 80,133.40

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Solution

The fourth proportional to 113,485.15, 170,282.40 and 80,133.40 is: 120,238.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,485.15 : 170,282.40 = 80,133.40 : x
  2. Step 2: Convert to fraction form
    113,485.15/170,282.40 = 80,133.40/x
  3. Step 3: Cross multiply
    113,485.15x = 170,282.40 × 80,133.40
  4. Step 4: Simplify right side
    113,485.15x = 13,645,307,672.16
  5. Step 5: Solve for x
    x = 13,645,307,672.16/113,485.15
  6. Step 6: Final answer
    x = 120,238.71

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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.