Home / 100,935.91-138,282.85-97,152.40

Finding the Fourth Proportional to 100,935.91, 138,282.85 and 97,152.40

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Solution

The fourth proportional to 100,935.91, 138,282.85 and 97,152.40 is: 133,099.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,935.91 : 138,282.85 = 97,152.40 : x
  2. Step 2: Convert to fraction form
    100,935.91/138,282.85 = 97,152.40/x
  3. Step 3: Cross multiply
    100,935.91x = 138,282.85 × 97,152.40
  4. Step 4: Simplify right side
    100,935.91x = 13,434,510,756.34
  5. Step 5: Solve for x
    x = 13,434,510,756.34/100,935.91
  6. Step 6: Final answer
    x = 133,099.42

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.