Home / 142,747.16-214,125.98-47,980.58

Finding the Fourth Proportional to 142,747.16, 214,125.98 and 47,980.58

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Solution

The fourth proportional to 142,747.16, 214,125.98 and 47,980.58 is: 71,972.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,747.16 : 214,125.98 = 47,980.58 : x
  2. Step 2: Convert to fraction form
    142,747.16/214,125.98 = 47,980.58/x
  3. Step 3: Cross multiply
    142,747.16x = 214,125.98 × 47,980.58
  4. Step 4: Simplify right side
    142,747.16x = 10,273,888,275.06
  5. Step 5: Solve for x
    x = 10,273,888,275.06/142,747.16
  6. Step 6: Final answer
    x = 71,972.63

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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.