Home / 136,784.04-205,022.56-89,490.12

Finding the Fourth Proportional to 136,784.04, 205,022.56 and 89,490.12

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Solution

The fourth proportional to 136,784.04, 205,022.56 and 89,490.12 is: 134,134.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,784.04 : 205,022.56 = 89,490.12 : x
  2. Step 2: Convert to fraction form
    136,784.04/205,022.56 = 89,490.12/x
  3. Step 3: Cross multiply
    136,784.04x = 205,022.56 × 89,490.12
  4. Step 4: Simplify right side
    136,784.04x = 18,347,493,497.11
  5. Step 5: Solve for x
    x = 18,347,493,497.11/136,784.04
  6. Step 6: Final answer
    x = 134,134.75

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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.