Home / 153,189.91-211,253.65-102,204.72

Finding the Fourth Proportional to 153,189.91, 211,253.65 and 102,204.72

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Solution

The fourth proportional to 153,189.91, 211,253.65 and 102,204.72 is: 140,943.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,189.91 : 211,253.65 = 102,204.72 : x
  2. Step 2: Convert to fraction form
    153,189.91/211,253.65 = 102,204.72/x
  3. Step 3: Cross multiply
    153,189.91x = 211,253.65 × 102,204.72
  4. Step 4: Simplify right side
    153,189.91x = 21,591,119,891.72
  5. Step 5: Solve for x
    x = 21,591,119,891.72/153,189.91
  6. Step 6: Final answer
    x = 140,943.48

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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.