Home / 142,363.28-213,472.80-47,559.68

Finding the Fourth Proportional to 142,363.28, 213,472.80 and 47,559.68

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Solution

The fourth proportional to 142,363.28, 213,472.80 and 47,559.68 is: 71,315.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,363.28 : 213,472.80 = 47,559.68 : x
  2. Step 2: Convert to fraction form
    142,363.28/213,472.80 = 47,559.68/x
  3. Step 3: Cross multiply
    142,363.28x = 213,472.80 × 47,559.68
  4. Step 4: Simplify right side
    142,363.28x = 10,152,698,056.70
  5. Step 5: Solve for x
    x = 10,152,698,056.70/142,363.28
  6. Step 6: Final answer
    x = 71,315.43

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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.