Home / 154,731.60-213,513.57-91,065.60

Finding the Fourth Proportional to 154,731.60, 213,513.57 and 91,065.60

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Solution

The fourth proportional to 154,731.60, 213,513.57 and 91,065.60 is: 125,661.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,731.60 : 213,513.57 = 91,065.60 : x
  2. Step 2: Convert to fraction form
    154,731.60/213,513.57 = 91,065.60/x
  3. Step 3: Cross multiply
    154,731.60x = 213,513.57 × 91,065.60
  4. Step 4: Simplify right side
    154,731.60x = 19,443,741,360.19
  5. Step 5: Solve for x
    x = 19,443,741,360.19/154,731.60
  6. Step 6: Final answer
    x = 125,661.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.