Home / 191,322.09-286,992.86-64,977.21

Finding the Fourth Proportional to 191,322.09, 286,992.86 and 64,977.21

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Solution

The fourth proportional to 191,322.09, 286,992.86 and 64,977.21 is: 97,469.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,322.09 : 286,992.86 = 64,977.21 : x
  2. Step 2: Convert to fraction form
    191,322.09/286,992.86 = 64,977.21/x
  3. Step 3: Cross multiply
    191,322.09x = 286,992.86 × 64,977.21
  4. Step 4: Simplify right side
    191,322.09x = 18,647,995,332.72
  5. Step 5: Solve for x
    x = 18,647,995,332.72/191,322.09
  6. Step 6: Final answer
    x = 97,469.12

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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.