Home / 119,350.61-164,708.07-65,639.78

Finding the Fourth Proportional to 119,350.61, 164,708.07 and 65,639.78

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Solution

The fourth proportional to 119,350.61, 164,708.07 and 65,639.78 is: 90,585.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,350.61 : 164,708.07 = 65,639.78 : x
  2. Step 2: Convert to fraction form
    119,350.61/164,708.07 = 65,639.78/x
  3. Step 3: Cross multiply
    119,350.61x = 164,708.07 × 65,639.78
  4. Step 4: Simplify right side
    119,350.61x = 10,811,401,479.02
  5. Step 5: Solve for x
    x = 10,811,401,479.02/119,350.61
  6. Step 6: Final answer
    x = 90,585.22

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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.