Home / 124,810.40-187,215.60-109,258.40

Finding the Fourth Proportional to 124,810.40, 187,215.60 and 109,258.40

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Solution

The fourth proportional to 124,810.40, 187,215.60 and 109,258.40 is: 163,887.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,810.40 : 187,215.60 = 109,258.40 : x
  2. Step 2: Convert to fraction form
    124,810.40/187,215.60 = 109,258.40/x
  3. Step 3: Cross multiply
    124,810.40x = 187,215.60 × 109,258.40
  4. Step 4: Simplify right side
    124,810.40x = 20,454,876,911.04
  5. Step 5: Solve for x
    x = 20,454,876,911.04/124,810.40
  6. Step 6: Final answer
    x = 163,887.60

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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.