Home / 78,159.56-107,855.19-43,707.14

Finding the Fourth Proportional to 78,159.56, 107,855.19 and 43,707.14

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Solution

The fourth proportional to 78,159.56, 107,855.19 and 43,707.14 is: 60,313.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,159.56 : 107,855.19 = 43,707.14 : x
  2. Step 2: Convert to fraction form
    78,159.56/107,855.19 = 43,707.14/x
  3. Step 3: Cross multiply
    78,159.56x = 107,855.19 × 43,707.14
  4. Step 4: Simplify right side
    78,159.56x = 4,714,041,349.78
  5. Step 5: Solve for x
    x = 4,714,041,349.78/78,159.56
  6. Step 6: Final answer
    x = 60,313.05

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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.