Home / 109,707.15-151,388.01-64,386.99

Finding the Fourth Proportional to 109,707.15, 151,388.01 and 64,386.99

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Solution

The fourth proportional to 109,707.15, 151,388.01 and 64,386.99 is: 88,849.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,707.15 : 151,388.01 = 64,386.99 : x
  2. Step 2: Convert to fraction form
    109,707.15/151,388.01 = 64,386.99/x
  3. Step 3: Cross multiply
    109,707.15x = 151,388.01 × 64,386.99
  4. Step 4: Simplify right side
    109,707.15x = 9,747,418,285.99
  5. Step 5: Solve for x
    x = 9,747,418,285.99/109,707.15
  6. Step 6: Final answer
    x = 88,849.43

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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.