Home / 142,352.20-213,528.30-89,993.80

Finding the Fourth Proportional to 142,352.20, 213,528.30 and 89,993.80

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Solution

The fourth proportional to 142,352.20, 213,528.30 and 89,993.80 is: 134,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,352.20 : 213,528.30 = 89,993.80 : x
  2. Step 2: Convert to fraction form
    142,352.20/213,528.30 = 89,993.80/x
  3. Step 3: Cross multiply
    142,352.20x = 213,528.30 × 89,993.80
  4. Step 4: Simplify right side
    142,352.20x = 19,216,223,124.54
  5. Step 5: Solve for x
    x = 19,216,223,124.54/142,352.20
  6. Step 6: Final answer
    x = 134,990.70

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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.