Home / 99,735.04-137,647.14-57,301.78

Finding the Fourth Proportional to 99,735.04, 137,647.14 and 57,301.78

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Solution

The fourth proportional to 99,735.04, 137,647.14 and 57,301.78 is: 79,083.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,735.04 : 137,647.14 = 57,301.78 : x
  2. Step 2: Convert to fraction form
    99,735.04/137,647.14 = 57,301.78/x
  3. Step 3: Cross multiply
    99,735.04x = 137,647.14 × 57,301.78
  4. Step 4: Simplify right side
    99,735.04x = 7,887,426,133.91
  5. Step 5: Solve for x
    x = 7,887,426,133.91/99,735.04
  6. Step 6: Final answer
    x = 79,083.80

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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.