Home / 79,262.30-118,278.60-70,849.64

Finding the Fourth Proportional to 79,262.30, 118,278.60 and 70,849.64

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Solution

The fourth proportional to 79,262.30, 118,278.60 and 70,849.64 is: 105,724.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,262.30 : 118,278.60 = 70,849.64 : x
  2. Step 2: Convert to fraction form
    79,262.30/118,278.60 = 70,849.64/x
  3. Step 3: Cross multiply
    79,262.30x = 118,278.60 × 70,849.64
  4. Step 4: Simplify right side
    79,262.30x = 8,379,995,638.31
  5. Step 5: Solve for x
    x = 8,379,995,638.31/79,262.30
  6. Step 6: Final answer
    x = 105,724.87

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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.