Home / 134,772.66-185,985.90-77,415.75

Finding the Fourth Proportional to 134,772.66, 185,985.90 and 77,415.75

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Solution

The fourth proportional to 134,772.66, 185,985.90 and 77,415.75 is: 106,833.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,772.66 : 185,985.90 = 77,415.75 : x
  2. Step 2: Convert to fraction form
    134,772.66/185,985.90 = 77,415.75/x
  3. Step 3: Cross multiply
    134,772.66x = 185,985.90 × 77,415.75
  4. Step 4: Simplify right side
    134,772.66x = 14,398,237,937.93
  5. Step 5: Solve for x
    x = 14,398,237,937.93/134,772.66
  6. Step 6: Final answer
    x = 106,833.52

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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.