Home / 142,600.76-213,829.14-83,454.20

Finding the Fourth Proportional to 142,600.76, 213,829.14 and 83,454.20

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Solution

The fourth proportional to 142,600.76, 213,829.14 and 83,454.20 is: 125,139.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,600.76 : 213,829.14 = 83,454.20 : x
  2. Step 2: Convert to fraction form
    142,600.76/213,829.14 = 83,454.20/x
  3. Step 3: Cross multiply
    142,600.76x = 213,829.14 × 83,454.20
  4. Step 4: Simplify right side
    142,600.76x = 17,844,939,815.39
  5. Step 5: Solve for x
    x = 17,844,939,815.39/142,600.76
  6. Step 6: Final answer
    x = 125,139.16

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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.