Home / 281,124.78-387,913.95-167,923.50

Finding the Fourth Proportional to 281,124.78, 387,913.95 and 167,923.50

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Solution

The fourth proportional to 281,124.78, 387,913.95 and 167,923.50 is: 231,711.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,124.78 : 387,913.95 = 167,923.50 : x
  2. Step 2: Convert to fraction form
    281,124.78/387,913.95 = 167,923.50/x
  3. Step 3: Cross multiply
    281,124.78x = 387,913.95 × 167,923.50
  4. Step 4: Simplify right side
    281,124.78x = 65,139,868,182.83
  5. Step 5: Solve for x
    x = 65,139,868,182.83/281,124.78
  6. Step 6: Final answer
    x = 231,711.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.