Home / 113,883.80-170,979.60-66,547.40

Finding the Fourth Proportional to 113,883.80, 170,979.60 and 66,547.40

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Solution

The fourth proportional to 113,883.80, 170,979.60 and 66,547.40 is: 99,911.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,883.80 : 170,979.60 = 66,547.40 : x
  2. Step 2: Convert to fraction form
    113,883.80/170,979.60 = 66,547.40/x
  3. Step 3: Cross multiply
    113,883.80x = 170,979.60 × 66,547.40
  4. Step 4: Simplify right side
    113,883.80x = 11,378,247,833.04
  5. Step 5: Solve for x
    x = 11,378,247,833.04/113,883.80
  6. Step 6: Final answer
    x = 99,911.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.