Home / 149,905.68-206,518.56-104,501.16

Finding the Fourth Proportional to 149,905.68, 206,518.56 and 104,501.16

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Solution

The fourth proportional to 149,905.68, 206,518.56 and 104,501.16 is: 143,966.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,905.68 : 206,518.56 = 104,501.16 : x
  2. Step 2: Convert to fraction form
    149,905.68/206,518.56 = 104,501.16/x
  3. Step 3: Cross multiply
    149,905.68x = 206,518.56 × 104,501.16
  4. Step 4: Simplify right side
    149,905.68x = 21,581,429,081.53
  5. Step 5: Solve for x
    x = 21,581,429,081.53/149,905.68
  6. Step 6: Final answer
    x = 143,966.72

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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.