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Finding the Fourth Proportional to 97,297.29, 145,945.94 and 75,142.98

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Solution

The fourth proportional to 97,297.29, 145,945.94 and 75,142.98 is: 112,714.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,297.29 : 145,945.94 = 75,142.98 : x
  2. Step 2: Convert to fraction form
    97,297.29/145,945.94 = 75,142.98/x
  3. Step 3: Cross multiply
    97,297.29x = 145,945.94 × 75,142.98
  4. Step 4: Simplify right side
    97,297.29x = 10,966,812,474.79
  5. Step 5: Solve for x
    x = 10,966,812,474.79/97,297.29
  6. Step 6: Final answer
    x = 112,714.47

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Similar ratio
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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.