Home / 147,529.93-220,921.21-91,479.51

Finding the Fourth Proportional to 147,529.93, 220,921.21 and 91,479.51

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Solution

The fourth proportional to 147,529.93, 220,921.21 and 91,479.51 is: 136,987.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,529.93 : 220,921.21 = 91,479.51 : x
  2. Step 2: Convert to fraction form
    147,529.93/220,921.21 = 91,479.51/x
  3. Step 3: Cross multiply
    147,529.93x = 220,921.21 × 91,479.51
  4. Step 4: Simplify right side
    147,529.93x = 20,209,764,957.12
  5. Step 5: Solve for x
    x = 20,209,764,957.12/147,529.93
  6. Step 6: Final answer
    x = 136,987.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.