Home / 147,400.11-203,417.64-83,748.69

Finding the Fourth Proportional to 147,400.11, 203,417.64 and 83,748.69

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Solution

The fourth proportional to 147,400.11, 203,417.64 and 83,748.69 is: 115,576.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,400.11 : 203,417.64 = 83,748.69 : x
  2. Step 2: Convert to fraction form
    147,400.11/203,417.64 = 83,748.69/x
  3. Step 3: Cross multiply
    147,400.11x = 203,417.64 × 83,748.69
  4. Step 4: Simplify right side
    147,400.11x = 17,035,960,872.89
  5. Step 5: Solve for x
    x = 17,035,960,872.89/147,400.11
  6. Step 6: Final answer
    x = 115,576.31

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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.