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Finding the Fourth Proportional to 105,159.44, 157,761.84 and 30,279.08

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Solution

The fourth proportional to 105,159.44, 157,761.84 and 30,279.08 is: 45,425.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,159.44 : 157,761.84 = 30,279.08 : x
  2. Step 2: Convert to fraction form
    105,159.44/157,761.84 = 30,279.08/x
  3. Step 3: Cross multiply
    105,159.44x = 157,761.84 × 30,279.08
  4. Step 4: Simplify right side
    105,159.44x = 4,776,883,374.31
  5. Step 5: Solve for x
    x = 4,776,883,374.31/105,159.44
  6. Step 6: Final answer
    x = 45,425.15

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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.