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Finding the Fourth Proportional to 153,404.60, 211,714.74 and 89,795.70

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Solution

The fourth proportional to 153,404.60, 211,714.74 and 89,795.70 is: 123,927.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,404.60 : 211,714.74 = 89,795.70 : x
  2. Step 2: Convert to fraction form
    153,404.60/211,714.74 = 89,795.70/x
  3. Step 3: Cross multiply
    153,404.60x = 211,714.74 × 89,795.70
  4. Step 4: Simplify right side
    153,404.60x = 19,011,073,278.62
  5. Step 5: Solve for x
    x = 19,011,073,278.62/153,404.60
  6. Step 6: Final answer
    x = 123,927.67

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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.