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Finding the Fourth Proportional to 159,307.32, 219,770.28 and 102,736.92

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Solution

The fourth proportional to 159,307.32, 219,770.28 and 102,736.92 is: 141,729.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,307.32 : 219,770.28 = 102,736.92 : x
  2. Step 2: Convert to fraction form
    159,307.32/219,770.28 = 102,736.92/x
  3. Step 3: Cross multiply
    159,307.32x = 219,770.28 × 102,736.92
  4. Step 4: Simplify right side
    159,307.32x = 22,578,521,674.74
  5. Step 5: Solve for x
    x = 22,578,521,674.74/159,307.32
  6. Step 6: Final answer
    x = 141,729.34

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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.