Home / 90,746.20-136,119.30-84,914.20

Finding the Fourth Proportional to 90,746.20, 136,119.30 and 84,914.20

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Solution

The fourth proportional to 90,746.20, 136,119.30 and 84,914.20 is: 127,371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,746.20 : 136,119.30 = 84,914.20 : x
  2. Step 2: Convert to fraction form
    90,746.20/136,119.30 = 84,914.20/x
  3. Step 3: Cross multiply
    90,746.20x = 136,119.30 × 84,914.20
  4. Step 4: Simplify right side
    90,746.20x = 11,558,461,464.06
  5. Step 5: Solve for x
    x = 11,558,461,464.06/90,746.20
  6. Step 6: Final answer
    x = 127,371.30

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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.