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Finding the Fourth Proportional to 100,547.66, 150,769.91 and 53,188.31

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Solution

The fourth proportional to 100,547.66, 150,769.91 and 53,188.31 is: 79,755.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,547.66 : 150,769.91 = 53,188.31 : x
  2. Step 2: Convert to fraction form
    100,547.66/150,769.91 = 53,188.31/x
  3. Step 3: Cross multiply
    100,547.66x = 150,769.91 × 53,188.31
  4. Step 4: Simplify right side
    100,547.66x = 8,019,197,221.65
  5. Step 5: Solve for x
    x = 8,019,197,221.65/100,547.66
  6. Step 6: Final answer
    x = 79,755.18

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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.