Home / 165,611.08-228,547.38-90,163.72

Finding the Fourth Proportional to 165,611.08, 228,547.38 and 90,163.72

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Solution

The fourth proportional to 165,611.08, 228,547.38 and 90,163.72 is: 124,428.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,611.08 : 228,547.38 = 90,163.72 : x
  2. Step 2: Convert to fraction form
    165,611.08/228,547.38 = 90,163.72/x
  3. Step 3: Cross multiply
    165,611.08x = 228,547.38 × 90,163.72
  4. Step 4: Simplify right side
    165,611.08x = 20,606,681,977.05
  5. Step 5: Solve for x
    x = 20,606,681,977.05/165,611.08
  6. Step 6: Final answer
    x = 124,428.16

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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.