Home / 151,122.04-208,541.82-83,134.72

Finding the Fourth Proportional to 151,122.04, 208,541.82 and 83,134.72

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Solution

The fourth proportional to 151,122.04, 208,541.82 and 83,134.72 is: 114,722.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,122.04 : 208,541.82 = 83,134.72 : x
  2. Step 2: Convert to fraction form
    151,122.04/208,541.82 = 83,134.72/x
  3. Step 3: Cross multiply
    151,122.04x = 208,541.82 × 83,134.72
  4. Step 4: Simplify right side
    151,122.04x = 17,337,065,813.99
  5. Step 5: Solve for x
    x = 17,337,065,813.99/151,122.04
  6. Step 6: Final answer
    x = 114,722.29

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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.