Home / 151,138.07-208,572.14-83,155.94

Finding the Fourth Proportional to 151,138.07, 208,572.14 and 83,155.94

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Solution

The fourth proportional to 151,138.07, 208,572.14 and 83,155.94 is: 114,756.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,138.07 : 208,572.14 = 83,155.94 : x
  2. Step 2: Convert to fraction form
    151,138.07/208,572.14 = 83,155.94/x
  3. Step 3: Cross multiply
    151,138.07x = 208,572.14 × 83,155.94
  4. Step 4: Simplify right side
    151,138.07x = 17,344,011,943.73
  5. Step 5: Solve for x
    x = 17,344,011,943.73/151,138.07
  6. Step 6: Final answer
    x = 114,756.08

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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.