Home / 185,322.16-255,744.50-100,439.20

Finding the Fourth Proportional to 185,322.16, 255,744.50 and 100,439.20

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Solution

The fourth proportional to 185,322.16, 255,744.50 and 100,439.20 is: 138,606.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,322.16 : 255,744.50 = 100,439.20 : x
  2. Step 2: Convert to fraction form
    185,322.16/255,744.50 = 100,439.20/x
  3. Step 3: Cross multiply
    185,322.16x = 255,744.50 × 100,439.20
  4. Step 4: Simplify right side
    185,322.16x = 25,686,772,984.40
  5. Step 5: Solve for x
    x = 25,686,772,984.40/185,322.16
  6. Step 6: Final answer
    x = 138,606.05

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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.