Home / 151,949.79-209,703.34-83,980.04

Finding the Fourth Proportional to 151,949.79, 209,703.34 and 83,980.04

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Solution

The fourth proportional to 151,949.79, 209,703.34 and 83,980.04 is: 115,899.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,949.79 : 209,703.34 = 83,980.04 : x
  2. Step 2: Convert to fraction form
    151,949.79/209,703.34 = 83,980.04/x
  3. Step 3: Cross multiply
    151,949.79x = 209,703.34 × 83,980.04
  4. Step 4: Simplify right side
    151,949.79x = 17,610,894,881.33
  5. Step 5: Solve for x
    x = 17,610,894,881.33/151,949.79
  6. Step 6: Final answer
    x = 115,899.44

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1.5x scale

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.