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Finding the Fourth Proportional to 171,853.70, 258,011.40 and 100,849.10

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Solution

The fourth proportional to 171,853.70, 258,011.40 and 100,849.10 is: 151,409.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,853.70 : 258,011.40 = 100,849.10 : x
  2. Step 2: Convert to fraction form
    171,853.70/258,011.40 = 100,849.10/x
  3. Step 3: Cross multiply
    171,853.70x = 258,011.40 × 100,849.10
  4. Step 4: Simplify right side
    171,853.70x = 26,020,217,479.74
  5. Step 5: Solve for x
    x = 26,020,217,479.74/171,853.70
  6. Step 6: Final answer
    x = 151,409.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.