Home / 147,285.19-203,419.11-99,455.50

Finding the Fourth Proportional to 147,285.19, 203,419.11 and 99,455.50

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Solution

The fourth proportional to 147,285.19, 203,419.11 and 99,455.50 is: 137,360.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,285.19 : 203,419.11 = 99,455.50 : x
  2. Step 2: Convert to fraction form
    147,285.19/203,419.11 = 99,455.50/x
  3. Step 3: Cross multiply
    147,285.19x = 203,419.11 × 99,455.50
  4. Step 4: Simplify right side
    147,285.19x = 20,231,149,294.61
  5. Step 5: Solve for x
    x = 20,231,149,294.61/147,285.19
  6. Step 6: Final answer
    x = 137,360.38

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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.