Home / 260,105.54-390,184.27-70,568.88

Finding the Fourth Proportional to 260,105.54, 390,184.27 and 70,568.88

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Solution

The fourth proportional to 260,105.54, 390,184.27 and 70,568.88 is: 105,860.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,105.54 : 390,184.27 = 70,568.88 : x
  2. Step 2: Convert to fraction form
    260,105.54/390,184.27 = 70,568.88/x
  3. Step 3: Cross multiply
    260,105.54x = 390,184.27 × 70,568.88
  4. Step 4: Simplify right side
    260,105.54x = 27,534,866,927.52
  5. Step 5: Solve for x
    x = 27,534,866,927.52/260,105.54
  6. Step 6: Final answer
    x = 105,860.36

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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.