Home / 209,315.78-288,754.26-124,372.70

Finding the Fourth Proportional to 209,315.78, 288,754.26 and 124,372.70

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Solution

The fourth proportional to 209,315.78, 288,754.26 and 124,372.70 is: 171,574.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,315.78 : 288,754.26 = 124,372.70 : x
  2. Step 2: Convert to fraction form
    209,315.78/288,754.26 = 124,372.70/x
  3. Step 3: Cross multiply
    209,315.78x = 288,754.26 × 124,372.70
  4. Step 4: Simplify right side
    209,315.78x = 35,913,146,952.70
  5. Step 5: Solve for x
    x = 35,913,146,952.70/209,315.78
  6. Step 6: Final answer
    x = 171,574.01

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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.