Home / 211,344.80-317,154.59-91,518.76

Finding the Fourth Proportional to 211,344.80, 317,154.59 and 91,518.76

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Solution

The fourth proportional to 211,344.80, 317,154.59 and 91,518.76 is: 137,337.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,344.80 : 317,154.59 = 91,518.76 : x
  2. Step 2: Convert to fraction form
    211,344.80/317,154.59 = 91,518.76/x
  3. Step 3: Cross multiply
    211,344.80x = 317,154.59 × 91,518.76
  4. Step 4: Simplify right side
    211,344.80x = 29,025,595,087.15
  5. Step 5: Solve for x
    x = 29,025,595,087.15/211,344.80
  6. Step 6: Final answer
    x = 137,337.64

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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.