Home / 185,038.24-255,354.64-100,157.12

Finding the Fourth Proportional to 185,038.24, 255,354.64 and 100,157.12

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Solution

The fourth proportional to 185,038.24, 255,354.64 and 100,157.12 is: 138,217.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,038.24 : 255,354.64 = 100,157.12 : x
  2. Step 2: Convert to fraction form
    185,038.24/255,354.64 = 100,157.12/x
  3. Step 3: Cross multiply
    185,038.24x = 255,354.64 × 100,157.12
  4. Step 4: Simplify right side
    185,038.24x = 25,575,585,321.04
  5. Step 5: Solve for x
    x = 25,575,585,321.04/185,038.24
  6. Step 6: Final answer
    x = 138,217.84

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1.5x scale

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.