Home / 107,376.68-148,192.80-64,939.16

Finding the Fourth Proportional to 107,376.68, 148,192.80 and 64,939.16

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Solution

The fourth proportional to 107,376.68, 148,192.80 and 64,939.16 is: 89,623.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,376.68 : 148,192.80 = 64,939.16 : x
  2. Step 2: Convert to fraction form
    107,376.68/148,192.80 = 64,939.16/x
  3. Step 3: Cross multiply
    107,376.68x = 148,192.80 × 64,939.16
  4. Step 4: Simplify right side
    107,376.68x = 9,623,515,950.05
  5. Step 5: Solve for x
    x = 9,623,515,950.05/107,376.68
  6. Step 6: Final answer
    x = 89,623.89

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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.