Home / 106,726.61-147,278.55-61,411.52

Finding the Fourth Proportional to 106,726.61, 147,278.55 and 61,411.52

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Solution

The fourth proportional to 106,726.61, 147,278.55 and 61,411.52 is: 84,745.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,726.61 : 147,278.55 = 61,411.52 : x
  2. Step 2: Convert to fraction form
    106,726.61/147,278.55 = 61,411.52/x
  3. Step 3: Cross multiply
    106,726.61x = 147,278.55 × 61,411.52
  4. Step 4: Simplify right side
    106,726.61x = 9,044,599,388.94
  5. Step 5: Solve for x
    x = 9,044,599,388.94/106,726.61
  6. Step 6: Final answer
    x = 84,745.49

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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.