Home / 98,621.40-147,932.10-91,018.20

Finding the Fourth Proportional to 98,621.40, 147,932.10 and 91,018.20

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Solution

The fourth proportional to 98,621.40, 147,932.10 and 91,018.20 is: 136,527.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,621.40 : 147,932.10 = 91,018.20 : x
  2. Step 2: Convert to fraction form
    98,621.40/147,932.10 = 91,018.20/x
  3. Step 3: Cross multiply
    98,621.40x = 147,932.10 × 91,018.20
  4. Step 4: Simplify right side
    98,621.40x = 13,464,513,464.22
  5. Step 5: Solve for x
    x = 13,464,513,464.22/98,621.40
  6. Step 6: Final answer
    x = 136,527.30

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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.