Home / 134,661.90-185,953.02-83,761.86

Finding the Fourth Proportional to 134,661.90, 185,953.02 and 83,761.86

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Solution

The fourth proportional to 134,661.90, 185,953.02 and 83,761.86 is: 115,665.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,661.90 : 185,953.02 = 83,761.86 : x
  2. Step 2: Convert to fraction form
    134,661.90/185,953.02 = 83,761.86/x
  3. Step 3: Cross multiply
    134,661.90x = 185,953.02 × 83,761.86
  4. Step 4: Simplify right side
    134,661.90x = 15,575,770,827.82
  5. Step 5: Solve for x
    x = 15,575,770,827.82/134,661.90
  6. Step 6: Final answer
    x = 115,665.76

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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.