Home / 142,298.28-213,423.12-47,515.32

Finding the Fourth Proportional to 142,298.28, 213,423.12 and 47,515.32

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Solution

The fourth proportional to 142,298.28, 213,423.12 and 47,515.32 is: 71,264.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,298.28 : 213,423.12 = 47,515.32 : x
  2. Step 2: Convert to fraction form
    142,298.28/213,423.12 = 47,515.32/x
  3. Step 3: Cross multiply
    142,298.28x = 213,423.12 × 47,515.32
  4. Step 4: Simplify right side
    142,298.28x = 10,140,867,842.20
  5. Step 5: Solve for x
    x = 10,140,867,842.20/142,298.28
  6. Step 6: Final answer
    x = 71,264.87

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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.