Home / 99,715.81-149,541.25-33,138.06

Finding the Fourth Proportional to 99,715.81, 149,541.25 and 33,138.06

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Solution

The fourth proportional to 99,715.81, 149,541.25 and 33,138.06 is: 49,696.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,715.81 : 149,541.25 = 33,138.06 : x
  2. Step 2: Convert to fraction form
    99,715.81/149,541.25 = 33,138.06/x
  3. Step 3: Cross multiply
    99,715.81x = 149,541.25 × 33,138.06
  4. Step 4: Simplify right side
    99,715.81x = 4,955,506,749.28
  5. Step 5: Solve for x
    x = 4,955,506,749.28/99,715.81
  6. Step 6: Final answer
    x = 49,696.30

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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.