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Finding the Fourth Proportional to 162,687.72, 224,393.09 and 99,029.60

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Solution

The fourth proportional to 162,687.72, 224,393.09 and 99,029.60 is: 136,590.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,687.72 : 224,393.09 = 99,029.60 : x
  2. Step 2: Convert to fraction form
    162,687.72/224,393.09 = 99,029.60/x
  3. Step 3: Cross multiply
    162,687.72x = 224,393.09 × 99,029.60
  4. Step 4: Simplify right side
    162,687.72x = 22,221,556,328.35
  5. Step 5: Solve for x
    x = 22,221,556,328.35/162,687.72
  6. Step 6: Final answer
    x = 136,590.25

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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.