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Finding the Fourth Proportional to 79,253.08, 118,171.07 and 77,075.80

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Solution

The fourth proportional to 79,253.08, 118,171.07 and 77,075.80 is: 114,924.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,253.08 : 118,171.07 = 77,075.80 : x
  2. Step 2: Convert to fraction form
    79,253.08/118,171.07 = 77,075.80/x
  3. Step 3: Cross multiply
    79,253.08x = 118,171.07 × 77,075.80
  4. Step 4: Simplify right side
    79,253.08x = 9,108,129,757.11
  5. Step 5: Solve for x
    x = 9,108,129,757.11/79,253.08
  6. Step 6: Final answer
    x = 114,924.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.