Home / 145,098.06-200,325.34-99,759.12

Finding the Fourth Proportional to 145,098.06, 200,325.34 and 99,759.12

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Solution

The fourth proportional to 145,098.06, 200,325.34 and 99,759.12 is: 137,729.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,098.06 : 200,325.34 = 99,759.12 : x
  2. Step 2: Convert to fraction form
    145,098.06/200,325.34 = 99,759.12/x
  3. Step 3: Cross multiply
    145,098.06x = 200,325.34 × 99,759.12
  4. Step 4: Simplify right side
    145,098.06x = 19,984,279,632.10
  5. Step 5: Solve for x
    x = 19,984,279,632.10/145,098.06
  6. Step 6: Final answer
    x = 137,729.48

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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.