Home / 119,338.15-164,681-65,625.43

Finding the Fourth Proportional to 119,338.15, 164,681 and 65,625.43

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Solution

The fourth proportional to 119,338.15, 164,681 and 65,625.43 is: 90,559.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,338.15 : 164,681 = 65,625.43 : x
  2. Step 2: Convert to fraction form
    119,338.15/164,681 = 65,625.43/x
  3. Step 3: Cross multiply
    119,338.15x = 164,681 × 65,625.43
  4. Step 4: Simplify right side
    119,338.15x = 10,807,260,614.43
  5. Step 5: Solve for x
    x = 10,807,260,614.43/119,338.15
  6. Step 6: Final answer
    x = 90,559.98

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1.5x scale

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.