Home / 109,728.03-151,364.05-89,332.03

Finding the Fourth Proportional to 109,728.03, 151,364.05 and 89,332.03

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Solution

The fourth proportional to 109,728.03, 151,364.05 and 89,332.03 is: 123,228.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,728.03 : 151,364.05 = 89,332.03 : x
  2. Step 2: Convert to fraction form
    109,728.03/151,364.05 = 89,332.03/x
  3. Step 3: Cross multiply
    109,728.03x = 151,364.05 × 89,332.03
  4. Step 4: Simplify right side
    109,728.03x = 13,521,658,233.93
  5. Step 5: Solve for x
    x = 13,521,658,233.93/109,728.03
  6. Step 6: Final answer
    x = 123,228.84

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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.