Home / 151,731.77-209,387.70-83,750.04

Finding the Fourth Proportional to 151,731.77, 209,387.70 and 83,750.04

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Solution

The fourth proportional to 151,731.77, 209,387.70 and 83,750.04 is: 115,573.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,731.77 : 209,387.70 = 83,750.04 : x
  2. Step 2: Convert to fraction form
    151,731.77/209,387.70 = 83,750.04/x
  3. Step 3: Cross multiply
    151,731.77x = 209,387.70 × 83,750.04
  4. Step 4: Simplify right side
    151,731.77x = 17,536,228,250.51
  5. Step 5: Solve for x
    x = 17,536,228,250.51/151,731.77
  6. Step 6: Final answer
    x = 115,573.87

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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.