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Finding the Fourth Proportional to 108,157.47, 149,257.62 and 60,412.65

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Solution

The fourth proportional to 108,157.47, 149,257.62 and 60,412.65 is: 83,369.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,157.47 : 149,257.62 = 60,412.65 : x
  2. Step 2: Convert to fraction form
    108,157.47/149,257.62 = 60,412.65/x
  3. Step 3: Cross multiply
    108,157.47x = 149,257.62 × 60,412.65
  4. Step 4: Simplify right side
    108,157.47x = 9,017,048,356.89
  5. Step 5: Solve for x
    x = 9,017,048,356.89/108,157.47
  6. Step 6: Final answer
    x = 83,369.63

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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.