Home / 109,621.40-151,261.32-64,282.28

Finding the Fourth Proportional to 109,621.40, 151,261.32 and 64,282.28

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Solution

The fourth proportional to 109,621.40, 151,261.32 and 64,282.28 is: 88,700.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,621.40 : 151,261.32 = 64,282.28 : x
  2. Step 2: Convert to fraction form
    109,621.40/151,261.32 = 64,282.28/x
  3. Step 3: Cross multiply
    109,621.40x = 151,261.32 × 64,282.28
  4. Step 4: Simplify right side
    109,621.40x = 9,723,422,525.41
  5. Step 5: Solve for x
    x = 9,723,422,525.41/109,621.40
  6. Step 6: Final answer
    x = 88,700.04

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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.