Home / 185,320.14-278,287.64-115,642.32

Finding the Fourth Proportional to 185,320.14, 278,287.64 and 115,642.32

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Solution

The fourth proportional to 185,320.14, 278,287.64 and 115,642.32 is: 173,655.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,320.14 : 278,287.64 = 115,642.32 : x
  2. Step 2: Convert to fraction form
    185,320.14/278,287.64 = 115,642.32/x
  3. Step 3: Cross multiply
    185,320.14x = 278,287.64 × 115,642.32
  4. Step 4: Simplify right side
    185,320.14x = 32,181,828,316.92
  5. Step 5: Solve for x
    x = 32,181,828,316.92/185,320.14
  6. Step 6: Final answer
    x = 173,655.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.