Home / 115,665.40-173,886.90-98,558.20

Finding the Fourth Proportional to 115,665.40, 173,886.90 and 98,558.20

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Solution

The fourth proportional to 115,665.40, 173,886.90 and 98,558.20 is: 148,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,665.40 : 173,886.90 = 98,558.20 : x
  2. Step 2: Convert to fraction form
    115,665.40/173,886.90 = 98,558.20/x
  3. Step 3: Cross multiply
    115,665.40x = 173,886.90 × 98,558.20
  4. Step 4: Simplify right side
    115,665.40x = 17,137,979,867.58
  5. Step 5: Solve for x
    x = 17,137,979,867.58/115,665.40
  6. Step 6: Final answer
    x = 148,168.60

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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.