Home / 77,246.20-115,869.30-75,518.20

Finding the Fourth Proportional to 77,246.20, 115,869.30 and 75,518.20

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Solution

The fourth proportional to 77,246.20, 115,869.30 and 75,518.20 is: 113,277.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,246.20 : 115,869.30 = 75,518.20 : x
  2. Step 2: Convert to fraction form
    77,246.20/115,869.30 = 75,518.20/x
  3. Step 3: Cross multiply
    77,246.20x = 115,869.30 × 75,518.20
  4. Step 4: Simplify right side
    77,246.20x = 8,750,240,971.26
  5. Step 5: Solve for x
    x = 8,750,240,971.26/77,246.20
  6. Step 6: Final answer
    x = 113,277.30

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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.