Home / 118,788.20-163,927.78-65,075.16

Finding the Fourth Proportional to 118,788.20, 163,927.78 and 65,075.16

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Solution

The fourth proportional to 118,788.20, 163,927.78 and 65,075.16 is: 89,803.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,788.20 : 163,927.78 = 65,075.16 : x
  2. Step 2: Convert to fraction form
    118,788.20/163,927.78 = 65,075.16/x
  3. Step 3: Cross multiply
    118,788.20x = 163,927.78 × 65,075.16
  4. Step 4: Simplify right side
    118,788.20x = 10,667,626,511.94
  5. Step 5: Solve for x
    x = 10,667,626,511.94/118,788.20
  6. Step 6: Final answer
    x = 89,803.76

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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.