Home / 154,527.69-213,211.66-87,459.69

Finding the Fourth Proportional to 154,527.69, 213,211.66 and 87,459.69

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Solution

The fourth proportional to 154,527.69, 213,211.66 and 87,459.69 is: 120,673.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,527.69 : 213,211.66 = 87,459.69 : x
  2. Step 2: Convert to fraction form
    154,527.69/213,211.66 = 87,459.69/x
  3. Step 3: Cross multiply
    154,527.69x = 213,211.66 × 87,459.69
  4. Step 4: Simplify right side
    154,527.69x = 18,647,425,687.99
  5. Step 5: Solve for x
    x = 18,647,425,687.99/154,527.69
  6. Step 6: Final answer
    x = 120,673.68

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1.5x scale

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.