Home / 134,386.24-185,458.80-80,675.68

Finding the Fourth Proportional to 134,386.24, 185,458.80 and 80,675.68

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Solution

The fourth proportional to 134,386.24, 185,458.80 and 80,675.68 is: 111,335.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,386.24 : 185,458.80 = 80,675.68 : x
  2. Step 2: Convert to fraction form
    134,386.24/185,458.80 = 80,675.68/x
  3. Step 3: Cross multiply
    134,386.24x = 185,458.80 × 80,675.68
  4. Step 4: Simplify right side
    134,386.24x = 14,962,014,801.98
  5. Step 5: Solve for x
    x = 14,962,014,801.98/134,386.24
  6. Step 6: Final answer
    x = 111,335.91

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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.