Home / 102,925.80-142,040.14-57,603.42

Finding the Fourth Proportional to 102,925.80, 142,040.14 and 57,603.42

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Solution

The fourth proportional to 102,925.80, 142,040.14 and 57,603.42 is: 79,494.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,925.80 : 142,040.14 = 57,603.42 : x
  2. Step 2: Convert to fraction form
    102,925.80/142,040.14 = 57,603.42/x
  3. Step 3: Cross multiply
    102,925.80x = 142,040.14 × 57,603.42
  4. Step 4: Simplify right side
    102,925.80x = 8,181,997,841.28
  5. Step 5: Solve for x
    x = 8,181,997,841.28/102,925.80
  6. Step 6: Final answer
    x = 79,494.14

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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.