Home / 166,475.70-249,713.55-72,981.45

Finding the Fourth Proportional to 166,475.70, 249,713.55 and 72,981.45

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Solution

The fourth proportional to 166,475.70, 249,713.55 and 72,981.45 is: 109,472.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,475.70 : 249,713.55 = 72,981.45 : x
  2. Step 2: Convert to fraction form
    166,475.70/249,713.55 = 72,981.45/x
  3. Step 3: Cross multiply
    166,475.70x = 249,713.55 × 72,981.45
  4. Step 4: Simplify right side
    166,475.70x = 18,224,456,963.65
  5. Step 5: Solve for x
    x = 18,224,456,963.65/166,475.70
  6. Step 6: Final answer
    x = 109,472.18

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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.