Home / 157,926.51-217,938.68-86,306.53

Finding the Fourth Proportional to 157,926.51, 217,938.68 and 86,306.53

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Solution

The fourth proportional to 157,926.51, 217,938.68 and 86,306.53 is: 119,103.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,926.51 : 217,938.68 = 86,306.53 : x
  2. Step 2: Convert to fraction form
    157,926.51/217,938.68 = 86,306.53/x
  3. Step 3: Cross multiply
    157,926.51x = 217,938.68 × 86,306.53
  4. Step 4: Simplify right side
    157,926.51x = 18,809,531,223.58
  5. Step 5: Solve for x
    x = 18,809,531,223.58/157,926.51
  6. Step 6: Final answer
    x = 119,103.06

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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.