Home / 106,923.78-147,565.80-61,603.47

Finding the Fourth Proportional to 106,923.78, 147,565.80 and 61,603.47

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Solution

The fourth proportional to 106,923.78, 147,565.80 and 61,603.47 is: 85,019.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,923.78 : 147,565.80 = 61,603.47 : x
  2. Step 2: Convert to fraction form
    106,923.78/147,565.80 = 61,603.47/x
  3. Step 3: Cross multiply
    106,923.78x = 147,565.80 × 61,603.47
  4. Step 4: Simplify right side
    106,923.78x = 9,090,565,333.33
  5. Step 5: Solve for x
    x = 9,090,565,333.33/106,923.78
  6. Step 6: Final answer
    x = 85,019.12

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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.