Home / 107,178.19-147,895.24-61,870.77

Finding the Fourth Proportional to 107,178.19, 147,895.24 and 61,870.77

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Solution

The fourth proportional to 107,178.19, 147,895.24 and 61,870.77 is: 85,375.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,178.19 : 147,895.24 = 61,870.77 : x
  2. Step 2: Convert to fraction form
    107,178.19/147,895.24 = 61,870.77/x
  3. Step 3: Cross multiply
    107,178.19x = 147,895.24 × 61,870.77
  4. Step 4: Simplify right side
    107,178.19x = 9,150,391,638.66
  5. Step 5: Solve for x
    x = 9,150,391,638.66/107,178.19
  6. Step 6: Final answer
    x = 85,375.50

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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.