Home / 151,429.64-208,970.10-83,452.91

Finding the Fourth Proportional to 151,429.64, 208,970.10 and 83,452.91

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Solution

The fourth proportional to 151,429.64, 208,970.10 and 83,452.91 is: 115,163.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,429.64 : 208,970.10 = 83,452.91 : x
  2. Step 2: Convert to fraction form
    151,429.64/208,970.10 = 83,452.91/x
  3. Step 3: Cross multiply
    151,429.64x = 208,970.10 × 83,452.91
  4. Step 4: Simplify right side
    151,429.64x = 17,439,161,903.14
  5. Step 5: Solve for x
    x = 17,439,161,903.14/151,429.64
  6. Step 6: Final answer
    x = 115,163.47

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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.