Home / 154,457.07-213,087.40-93,979.23

Finding the Fourth Proportional to 154,457.07, 213,087.40 and 93,979.23

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Solution

The fourth proportional to 154,457.07, 213,087.40 and 93,979.23 is: 129,652.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,457.07 : 213,087.40 = 93,979.23 : x
  2. Step 2: Convert to fraction form
    154,457.07/213,087.40 = 93,979.23/x
  3. Step 3: Cross multiply
    154,457.07x = 213,087.40 × 93,979.23
  4. Step 4: Simplify right side
    154,457.07x = 20,025,789,774.70
  5. Step 5: Solve for x
    x = 20,025,789,774.70/154,457.07
  6. Step 6: Final answer
    x = 129,652.79

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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.