Home / 142,751.07-214,146.26-47,988.61

Finding the Fourth Proportional to 142,751.07, 214,146.26 and 47,988.61

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Solution

The fourth proportional to 142,751.07, 214,146.26 and 47,988.61 is: 71,989.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,751.07 : 214,146.26 = 47,988.61 : x
  2. Step 2: Convert to fraction form
    142,751.07/214,146.26 = 47,988.61/x
  3. Step 3: Cross multiply
    142,751.07x = 214,146.26 × 47,988.61
  4. Step 4: Simplify right side
    142,751.07x = 10,276,580,938.70
  5. Step 5: Solve for x
    x = 10,276,580,938.70/142,751.07
  6. Step 6: Final answer
    x = 71,989.52

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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.