Home / 134,085.18-185,023.83-77,514.78

Finding the Fourth Proportional to 134,085.18, 185,023.83 and 77,514.78

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Solution

The fourth proportional to 134,085.18, 185,023.83 and 77,514.78 is: 106,962.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,085.18 : 185,023.83 = 77,514.78 : x
  2. Step 2: Convert to fraction form
    134,085.18/185,023.83 = 77,514.78/x
  3. Step 3: Cross multiply
    134,085.18x = 185,023.83 × 77,514.78
  4. Step 4: Simplify right side
    134,085.18x = 14,342,081,477.21
  5. Step 5: Solve for x
    x = 14,342,081,477.21/134,085.18
  6. Step 6: Final answer
    x = 106,962.47

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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.