Home / 98,148.35-135,410.23-64,176.72

Finding the Fourth Proportional to 98,148.35, 135,410.23 and 64,176.72

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Solution

The fourth proportional to 98,148.35, 135,410.23 and 64,176.72 is: 88,541.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,148.35 : 135,410.23 = 64,176.72 : x
  2. Step 2: Convert to fraction form
    98,148.35/135,410.23 = 64,176.72/x
  3. Step 3: Cross multiply
    98,148.35x = 135,410.23 × 64,176.72
  4. Step 4: Simplify right side
    98,148.35x = 8,690,185,311.30
  5. Step 5: Solve for x
    x = 8,690,185,311.30/98,148.35
  6. Step 6: Final answer
    x = 88,541.33

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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.