Home / 107,932.12-161,981.40-70,482.04

Finding the Fourth Proportional to 107,932.12, 161,981.40 and 70,482.04

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Solution

The fourth proportional to 107,932.12, 161,981.40 and 70,482.04 is: 105,777.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,932.12 : 161,981.40 = 70,482.04 : x
  2. Step 2: Convert to fraction form
    107,932.12/161,981.40 = 70,482.04/x
  3. Step 3: Cross multiply
    107,932.12x = 161,981.40 × 70,482.04
  4. Step 4: Simplify right side
    107,932.12x = 11,416,779,514.06
  5. Step 5: Solve for x
    x = 11,416,779,514.06/107,932.12
  6. Step 6: Final answer
    x = 105,777.40

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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.