Home / 121,526.20-182,289.30-111,903.40

Finding the Fourth Proportional to 121,526.20, 182,289.30 and 111,903.40

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Solution

The fourth proportional to 121,526.20, 182,289.30 and 111,903.40 is: 167,855.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,526.20 : 182,289.30 = 111,903.40 : x
  2. Step 2: Convert to fraction form
    121,526.20/182,289.30 = 111,903.40/x
  3. Step 3: Cross multiply
    121,526.20x = 182,289.30 × 111,903.40
  4. Step 4: Simplify right side
    121,526.20x = 20,398,792,453.62
  5. Step 5: Solve for x
    x = 20,398,792,453.62/121,526.20
  6. Step 6: Final answer
    x = 167,855.10

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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.