Home / 191,453.32-287,115.27-71,485.39

Finding the Fourth Proportional to 191,453.32, 287,115.27 and 71,485.39

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Solution

The fourth proportional to 191,453.32, 287,115.27 and 71,485.39 is: 107,203.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,453.32 : 287,115.27 = 71,485.39 : x
  2. Step 2: Convert to fraction form
    191,453.32/287,115.27 = 71,485.39/x
  3. Step 3: Cross multiply
    191,453.32x = 287,115.27 × 71,485.39
  4. Step 4: Simplify right side
    191,453.32x = 20,524,547,050.91
  5. Step 5: Solve for x
    x = 20,524,547,050.91/191,453.32
  6. Step 6: Final answer
    x = 107,203.92

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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.