Home / 151,948.79-209,701.96-83,979.04

Finding the Fourth Proportional to 151,948.79, 209,701.96 and 83,979.04

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Solution

The fourth proportional to 151,948.79, 209,701.96 and 83,979.04 is: 115,898.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,948.79 : 209,701.96 = 83,979.04 : x
  2. Step 2: Convert to fraction form
    151,948.79/209,701.96 = 83,979.04/x
  3. Step 3: Cross multiply
    151,948.79x = 209,701.96 × 83,979.04
  4. Step 4: Simplify right side
    151,948.79x = 17,610,568,828.50
  5. Step 5: Solve for x
    x = 17,610,568,828.50/151,948.79
  6. Step 6: Final answer
    x = 115,898.05

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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.