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Finding the Fourth Proportional to 105,416.70, 158,125.05 and 100,751.10

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Solution

The fourth proportional to 105,416.70, 158,125.05 and 100,751.10 is: 151,126.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,416.70 : 158,125.05 = 100,751.10 : x
  2. Step 2: Convert to fraction form
    105,416.70/158,125.05 = 100,751.10/x
  3. Step 3: Cross multiply
    105,416.70x = 158,125.05 × 100,751.10
  4. Step 4: Simplify right side
    105,416.70x = 15,931,272,725.06
  5. Step 5: Solve for x
    x = 15,931,272,725.06/105,416.70
  6. Step 6: Final answer
    x = 151,126.65

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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.