Home / 140,001.18-209,983.88-45,221.51

Finding the Fourth Proportional to 140,001.18, 209,983.88 and 45,221.51

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Solution

The fourth proportional to 140,001.18, 209,983.88 and 45,221.51 is: 67,826.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,001.18 : 209,983.88 = 45,221.51 : x
  2. Step 2: Convert to fraction form
    140,001.18/209,983.88 = 45,221.51/x
  3. Step 3: Cross multiply
    140,001.18x = 209,983.88 × 45,221.51
  4. Step 4: Simplify right side
    140,001.18x = 9,495,787,331.74
  5. Step 5: Solve for x
    x = 9,495,787,331.74/140,001.18
  6. Step 6: Final answer
    x = 67,826.48

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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.