Home / 151,579.36-209,176.75-83,602.63

Finding the Fourth Proportional to 151,579.36, 209,176.75 and 83,602.63

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Solution

The fourth proportional to 151,579.36, 209,176.75 and 83,602.63 is: 115,370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,579.36 : 209,176.75 = 83,602.63 : x
  2. Step 2: Convert to fraction form
    151,579.36/209,176.75 = 83,602.63/x
  3. Step 3: Cross multiply
    151,579.36x = 209,176.75 × 83,602.63
  4. Step 4: Simplify right side
    151,579.36x = 17,487,726,434.85
  5. Step 5: Solve for x
    x = 17,487,726,434.85/151,579.36
  6. Step 6: Final answer
    x = 115,370.10

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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.