Home / 191,509.72-287,284.20-73,280.52

Finding the Fourth Proportional to 191,509.72, 287,284.20 and 73,280.52

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Solution

The fourth proportional to 191,509.72, 287,284.20 and 73,280.52 is: 109,928.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,509.72 : 287,284.20 = 73,280.52 : x
  2. Step 2: Convert to fraction form
    191,509.72/287,284.20 = 73,280.52/x
  3. Step 3: Cross multiply
    191,509.72x = 287,284.20 × 73,280.52
  4. Step 4: Simplify right side
    191,509.72x = 21,052,335,563.78
  5. Step 5: Solve for x
    x = 21,052,335,563.78/191,509.72
  6. Step 6: Final answer
    x = 109,928.29

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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.