Home / 145,508.12-218,300.16-45,671.48

Finding the Fourth Proportional to 145,508.12, 218,300.16 and 45,671.48

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Solution

The fourth proportional to 145,508.12, 218,300.16 and 45,671.48 is: 68,519.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,508.12 : 218,300.16 = 45,671.48 : x
  2. Step 2: Convert to fraction form
    145,508.12/218,300.16 = 45,671.48/x
  3. Step 3: Cross multiply
    145,508.12x = 218,300.16 × 45,671.48
  4. Step 4: Simplify right side
    145,508.12x = 9,970,091,391.44
  5. Step 5: Solve for x
    x = 9,970,091,391.44/145,508.12
  6. Step 6: Final answer
    x = 68,519.14

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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.