Home / 149,219.46-205,937.73-111,428.10

Finding the Fourth Proportional to 149,219.46, 205,937.73 and 111,428.10

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Solution

The fourth proportional to 149,219.46, 205,937.73 and 111,428.10 is: 153,781.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,219.46 : 205,937.73 = 111,428.10 : x
  2. Step 2: Convert to fraction form
    149,219.46/205,937.73 = 111,428.10/x
  3. Step 3: Cross multiply
    149,219.46x = 205,937.73 × 111,428.10
  4. Step 4: Simplify right side
    149,219.46x = 22,947,249,972.21
  5. Step 5: Solve for x
    x = 22,947,249,972.21/149,219.46
  6. Step 6: Final answer
    x = 153,781.89

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1.5x scale

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.