Home / 191,513.66-287,336.10-73,218.83

Finding the Fourth Proportional to 191,513.66, 287,336.10 and 73,218.83

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Solution

The fourth proportional to 191,513.66, 287,336.10 and 73,218.83 is: 109,853.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,513.66 : 287,336.10 = 73,218.83 : x
  2. Step 2: Convert to fraction form
    191,513.66/287,336.10 = 73,218.83/x
  3. Step 3: Cross multiply
    191,513.66x = 287,336.10 × 73,218.83
  4. Step 4: Simplify right side
    191,513.66x = 21,038,413,058.76
  5. Step 5: Solve for x
    x = 21,038,413,058.76/191,513.66
  6. Step 6: Final answer
    x = 109,853.33

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1.5x scale

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.