Home / 249,139.85-373,769.10-80,660.25

Finding the Fourth Proportional to 249,139.85, 373,769.10 and 80,660.25

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Solution

The fourth proportional to 249,139.85, 373,769.10 and 80,660.25 is: 121,009.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,139.85 : 373,769.10 = 80,660.25 : x
  2. Step 2: Convert to fraction form
    249,139.85/373,769.10 = 80,660.25/x
  3. Step 3: Cross multiply
    249,139.85x = 373,769.10 × 80,660.25
  4. Step 4: Simplify right side
    249,139.85x = 30,148,309,048.28
  5. Step 5: Solve for x
    x = 30,148,309,048.28/249,139.85
  6. Step 6: Final answer
    x = 121,009.58

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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.