Home / 118,437.11-163,436.27-64,722.54

Finding the Fourth Proportional to 118,437.11, 163,436.27 and 64,722.54

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Solution

The fourth proportional to 118,437.11, 163,436.27 and 64,722.54 is: 89,313.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,437.11 : 163,436.27 = 64,722.54 : x
  2. Step 2: Convert to fraction form
    118,437.11/163,436.27 = 64,722.54/x
  3. Step 3: Cross multiply
    118,437.11x = 163,436.27 × 64,722.54
  4. Step 4: Simplify right side
    118,437.11x = 10,578,010,198.91
  5. Step 5: Solve for x
    x = 10,578,010,198.91/118,437.11
  6. Step 6: Final answer
    x = 89,313.31

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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.