Home / 170,972.64-235,943.28-99,397.80

Finding the Fourth Proportional to 170,972.64, 235,943.28 and 99,397.80

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Solution

The fourth proportional to 170,972.64, 235,943.28 and 99,397.80 is: 137,169.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,972.64 : 235,943.28 = 99,397.80 : x
  2. Step 2: Convert to fraction form
    170,972.64/235,943.28 = 99,397.80/x
  3. Step 3: Cross multiply
    170,972.64x = 235,943.28 × 99,397.80
  4. Step 4: Simplify right side
    170,972.64x = 23,452,242,956.78
  5. Step 5: Solve for x
    x = 23,452,242,956.78/170,972.64
  6. Step 6: Final answer
    x = 137,169.57

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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.