Home / 107,808.93-148,776.62-64,789.16

Finding the Fourth Proportional to 107,808.93, 148,776.62 and 64,789.16

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Solution

The fourth proportional to 107,808.93, 148,776.62 and 64,789.16 is: 89,409.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,808.93 : 148,776.62 = 64,789.16 : x
  2. Step 2: Convert to fraction form
    107,808.93/148,776.62 = 64,789.16/x
  3. Step 3: Cross multiply
    107,808.93x = 148,776.62 × 64,789.16
  4. Step 4: Simplify right side
    107,808.93x = 9,639,111,169.61
  5. Step 5: Solve for x
    x = 9,639,111,169.61/107,808.93
  6. Step 6: Final answer
    x = 89,409.21

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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.