Home / 142,209.65-213,291.12-47,440.56

Finding the Fourth Proportional to 142,209.65, 213,291.12 and 47,440.56

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Solution

The fourth proportional to 142,209.65, 213,291.12 and 47,440.56 is: 71,153.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,209.65 : 213,291.12 = 47,440.56 : x
  2. Step 2: Convert to fraction form
    142,209.65/213,291.12 = 47,440.56/x
  3. Step 3: Cross multiply
    142,209.65x = 213,291.12 × 47,440.56
  4. Step 4: Simplify right side
    142,209.65x = 10,118,651,153.57
  5. Step 5: Solve for x
    x = 10,118,651,153.57/142,209.65
  6. Step 6: Final answer
    x = 71,153.05

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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.