Home / 79,166.16-118,935-74,682.72

Finding the Fourth Proportional to 79,166.16, 118,935 and 74,682.72

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Solution

The fourth proportional to 79,166.16, 118,935 and 74,682.72 is: 112,199.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,166.16 : 118,935 = 74,682.72 : x
  2. Step 2: Convert to fraction form
    79,166.16/118,935 = 74,682.72/x
  3. Step 3: Cross multiply
    79,166.16x = 118,935 × 74,682.72
  4. Step 4: Simplify right side
    79,166.16x = 8,882,389,303.20
  5. Step 5: Solve for x
    x = 8,882,389,303.20/79,166.16
  6. Step 6: Final answer
    x = 112,199.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.