Home / 109,646.39-151,270.32-68,793.20

Finding the Fourth Proportional to 109,646.39, 151,270.32 and 68,793.20

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Solution

The fourth proportional to 109,646.39, 151,270.32 and 68,793.20 is: 94,908.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,646.39 : 151,270.32 = 68,793.20 : x
  2. Step 2: Convert to fraction form
    109,646.39/151,270.32 = 68,793.20/x
  3. Step 3: Cross multiply
    109,646.39x = 151,270.32 × 68,793.20
  4. Step 4: Simplify right side
    109,646.39x = 10,406,369,377.82
  5. Step 5: Solve for x
    x = 10,406,369,377.82/109,646.39
  6. Step 6: Final answer
    x = 94,908.45

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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.