Home / 111,233.08-153,378.66-70,882.96

Finding the Fourth Proportional to 111,233.08, 153,378.66 and 70,882.96

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Solution

The fourth proportional to 111,233.08, 153,378.66 and 70,882.96 is: 97,740.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,233.08 : 153,378.66 = 70,882.96 : x
  2. Step 2: Convert to fraction form
    111,233.08/153,378.66 = 70,882.96/x
  3. Step 3: Cross multiply
    111,233.08x = 153,378.66 × 70,882.96
  4. Step 4: Simplify right side
    111,233.08x = 10,871,933,421.63
  5. Step 5: Solve for x
    x = 10,871,933,421.63/111,233.08
  6. Step 6: Final answer
    x = 97,740.11

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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.