Home / 205,431.80-283,479.72-113,547.21

Finding the Fourth Proportional to 205,431.80, 283,479.72 and 113,547.21

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Solution

The fourth proportional to 205,431.80, 283,479.72 and 113,547.21 is: 156,686.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,431.80 : 283,479.72 = 113,547.21 : x
  2. Step 2: Convert to fraction form
    205,431.80/283,479.72 = 113,547.21/x
  3. Step 3: Cross multiply
    205,431.80x = 283,479.72 × 113,547.21
  4. Step 4: Simplify right side
    205,431.80x = 32,188,331,297.58
  5. Step 5: Solve for x
    x = 32,188,331,297.58/205,431.80
  6. Step 6: Final answer
    x = 156,686.22

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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.