Home / 205,017.26-307,547.74-86,700.56

Finding the Fourth Proportional to 205,017.26, 307,547.74 and 86,700.56

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Solution

The fourth proportional to 205,017.26, 307,547.74 and 86,700.56 is: 130,060.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,017.26 : 307,547.74 = 86,700.56 : x
  2. Step 2: Convert to fraction form
    205,017.26/307,547.74 = 86,700.56/x
  3. Step 3: Cross multiply
    205,017.26x = 307,547.74 × 86,700.56
  4. Step 4: Simplify right side
    205,017.26x = 26,664,561,284.73
  5. Step 5: Solve for x
    x = 26,664,561,284.73/205,017.26
  6. Step 6: Final answer
    x = 130,060.08

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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.