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Finding the Fourth Proportional to 185,000.26, 255,300.30 and 100,117.30

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Solution

The fourth proportional to 185,000.26, 255,300.30 and 100,117.30 is: 138,161.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,000.26 : 255,300.30 = 100,117.30 : x
  2. Step 2: Convert to fraction form
    185,000.26/255,300.30 = 100,117.30/x
  3. Step 3: Cross multiply
    185,000.26x = 255,300.30 × 100,117.30
  4. Step 4: Simplify right side
    185,000.26x = 25,559,976,725.19
  5. Step 5: Solve for x
    x = 25,559,976,725.19/185,000.26
  6. Step 6: Final answer
    x = 138,161.84

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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.