Home / 145,788.10-217,883.38-106,428.10

Finding the Fourth Proportional to 145,788.10, 217,883.38 and 106,428.10

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Solution

The fourth proportional to 145,788.10, 217,883.38 and 106,428.10 is: 159,059.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,788.10 : 217,883.38 = 106,428.10 : x
  2. Step 2: Convert to fraction form
    145,788.10/217,883.38 = 106,428.10/x
  3. Step 3: Cross multiply
    145,788.10x = 217,883.38 × 106,428.10
  4. Step 4: Simplify right side
    145,788.10x = 23,188,914,154.98
  5. Step 5: Solve for x
    x = 23,188,914,154.98/145,788.10
  6. Step 6: Final answer
    x = 159,059.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.