Home / 106,742.08-160,140.75-56,781.01

Finding the Fourth Proportional to 106,742.08, 160,140.75 and 56,781.01

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Solution

The fourth proportional to 106,742.08, 160,140.75 and 56,781.01 is: 85,186.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,742.08 : 160,140.75 = 56,781.01 : x
  2. Step 2: Convert to fraction form
    106,742.08/160,140.75 = 56,781.01/x
  3. Step 3: Cross multiply
    106,742.08x = 160,140.75 × 56,781.01
  4. Step 4: Simplify right side
    106,742.08x = 9,092,953,527.16
  5. Step 5: Solve for x
    x = 9,092,953,527.16/106,742.08
  6. Step 6: Final answer
    x = 85,186.21

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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.