Home / 109,870.72-151,632.89-66,853.33

Finding the Fourth Proportional to 109,870.72, 151,632.89 and 66,853.33

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Solution

The fourth proportional to 109,870.72, 151,632.89 and 66,853.33 is: 92,264.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,870.72 : 151,632.89 = 66,853.33 : x
  2. Step 2: Convert to fraction form
    109,870.72/151,632.89 = 66,853.33/x
  3. Step 3: Cross multiply
    109,870.72x = 151,632.89 × 66,853.33
  4. Step 4: Simplify right side
    109,870.72x = 10,137,163,634.02
  5. Step 5: Solve for x
    x = 10,137,163,634.02/109,870.72
  6. Step 6: Final answer
    x = 92,264.47

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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.