Home / 107,724.79-148,666.34-64,717.43

Finding the Fourth Proportional to 107,724.79, 148,666.34 and 64,717.43

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Solution

The fourth proportional to 107,724.79, 148,666.34 and 64,717.43 is: 89,313.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,724.79 : 148,666.34 = 64,717.43 : x
  2. Step 2: Convert to fraction form
    107,724.79/148,666.34 = 64,717.43/x
  3. Step 3: Cross multiply
    107,724.79x = 148,666.34 × 64,717.43
  4. Step 4: Simplify right side
    107,724.79x = 9,621,303,342.98
  5. Step 5: Solve for x
    x = 9,621,303,342.98/107,724.79
  6. Step 6: Final answer
    x = 89,313.74

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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.