Home / 134,319.06-185,339.75-77,719.50

Finding the Fourth Proportional to 134,319.06, 185,339.75 and 77,719.50

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Solution

The fourth proportional to 134,319.06, 185,339.75 and 77,719.50 is: 107,241.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,319.06 : 185,339.75 = 77,719.50 : x
  2. Step 2: Convert to fraction form
    134,319.06/185,339.75 = 77,719.50/x
  3. Step 3: Cross multiply
    134,319.06x = 185,339.75 × 77,719.50
  4. Step 4: Simplify right side
    134,319.06x = 14,404,512,311.53
  5. Step 5: Solve for x
    x = 14,404,512,311.53/134,319.06
  6. Step 6: Final answer
    x = 107,241.01

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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.