Home / 90,776.94-136,064.52-68,518.14

Finding the Fourth Proportional to 90,776.94, 136,064.52 and 68,518.14

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Solution

The fourth proportional to 90,776.94, 136,064.52 and 68,518.14 is: 102,701.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,776.94 : 136,064.52 = 68,518.14 : x
  2. Step 2: Convert to fraction form
    90,776.94/136,064.52 = 68,518.14/x
  3. Step 3: Cross multiply
    90,776.94x = 136,064.52 × 68,518.14
  4. Step 4: Simplify right side
    90,776.94x = 9,322,887,830.39
  5. Step 5: Solve for x
    x = 9,322,887,830.39/90,776.94
  6. Step 6: Final answer
    x = 102,701.06

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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.