Home / 185,390.04-255,839.94-100,507.31

Finding the Fourth Proportional to 185,390.04, 255,839.94 and 100,507.31

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Solution

The fourth proportional to 185,390.04, 255,839.94 and 100,507.31 is: 138,700.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,390.04 : 255,839.94 = 100,507.31 : x
  2. Step 2: Convert to fraction form
    185,390.04/255,839.94 = 100,507.31/x
  3. Step 3: Cross multiply
    185,390.04x = 255,839.94 × 100,507.31
  4. Step 4: Simplify right side
    185,390.04x = 25,713,782,880.76
  5. Step 5: Solve for x
    x = 25,713,782,880.76/185,390.04
  6. Step 6: Final answer
    x = 138,700.99

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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.