Home / 113,426.40-170,139.60-57,439.20

Finding the Fourth Proportional to 113,426.40, 170,139.60 and 57,439.20

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Solution

The fourth proportional to 113,426.40, 170,139.60 and 57,439.20 is: 86,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,426.40 : 170,139.60 = 57,439.20 : x
  2. Step 2: Convert to fraction form
    113,426.40/170,139.60 = 57,439.20/x
  3. Step 3: Cross multiply
    113,426.40x = 170,139.60 × 57,439.20
  4. Step 4: Simplify right side
    113,426.40x = 9,772,682,512.32
  5. Step 5: Solve for x
    x = 9,772,682,512.32/113,426.40
  6. Step 6: Final answer
    x = 86,158.80

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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.