Home / 107,681.12-161,421.84-98,822.24

Finding the Fourth Proportional to 107,681.12, 161,421.84 and 98,822.24

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Solution

The fourth proportional to 107,681.12, 161,421.84 and 98,822.24 is: 148,141.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,681.12 : 161,421.84 = 98,822.24 : x
  2. Step 2: Convert to fraction form
    107,681.12/161,421.84 = 98,822.24/x
  3. Step 3: Cross multiply
    107,681.12x = 161,421.84 × 98,822.24
  4. Step 4: Simplify right side
    107,681.12x = 15,952,067,813.72
  5. Step 5: Solve for x
    x = 15,952,067,813.72/107,681.12
  6. Step 6: Final answer
    x = 148,141.73

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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.