Home / 134,621.01-185,785.77-77,278.91

Finding the Fourth Proportional to 134,621.01, 185,785.77 and 77,278.91

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Solution

The fourth proportional to 134,621.01, 185,785.77 and 77,278.91 is: 106,649.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,621.01 : 185,785.77 = 77,278.91 : x
  2. Step 2: Convert to fraction form
    134,621.01/185,785.77 = 77,278.91/x
  3. Step 3: Cross multiply
    134,621.01x = 185,785.77 × 77,278.91
  4. Step 4: Simplify right side
    134,621.01x = 14,357,320,870.18
  5. Step 5: Solve for x
    x = 14,357,320,870.18/134,621.01
  6. Step 6: Final answer
    x = 106,649.93

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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.