Home / 250,639.78-375,981.80-70,726.79

Finding the Fourth Proportional to 250,639.78, 375,981.80 and 70,726.79

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Solution

The fourth proportional to 250,639.78, 375,981.80 and 70,726.79 is: 106,096.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,639.78 : 375,981.80 = 70,726.79 : x
  2. Step 2: Convert to fraction form
    250,639.78/375,981.80 = 70,726.79/x
  3. Step 3: Cross multiply
    250,639.78x = 375,981.80 × 70,726.79
  4. Step 4: Simplify right side
    250,639.78x = 26,591,985,812.42
  5. Step 5: Solve for x
    x = 26,591,985,812.42/250,639.78
  6. Step 6: Final answer
    x = 106,096.43

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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.