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Finding the Fourth Proportional to 105,525.70, 158,154.15 and 43,125.70

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Solution

The fourth proportional to 105,525.70, 158,154.15 and 43,125.70 is: 64,633.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,525.70 : 158,154.15 = 43,125.70 : x
  2. Step 2: Convert to fraction form
    105,525.70/158,154.15 = 43,125.70/x
  3. Step 3: Cross multiply
    105,525.70x = 158,154.15 × 43,125.70
  4. Step 4: Simplify right side
    105,525.70x = 6,820,508,426.66
  5. Step 5: Solve for x
    x = 6,820,508,426.66/105,525.70
  6. Step 6: Final answer
    x = 64,633.62

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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.