Home / 90,762.94-136,043.52-68,504.14

Finding the Fourth Proportional to 90,762.94, 136,043.52 and 68,504.14

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Solution

The fourth proportional to 90,762.94, 136,043.52 and 68,504.14 is: 102,680.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,762.94 : 136,043.52 = 68,504.14 : x
  2. Step 2: Convert to fraction form
    90,762.94/136,043.52 = 68,504.14/x
  3. Step 3: Cross multiply
    90,762.94x = 136,043.52 × 68,504.14
  4. Step 4: Simplify right side
    90,762.94x = 9,319,544,340.17
  5. Step 5: Solve for x
    x = 9,319,544,340.17/90,762.94
  6. Step 6: Final answer
    x = 102,680.06

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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.