Home / 191,452.35-287,178.57-86,148.30

Finding the Fourth Proportional to 191,452.35, 287,178.57 and 86,148.30

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Solution

The fourth proportional to 191,452.35, 287,178.57 and 86,148.30 is: 129,222.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,452.35 : 287,178.57 = 86,148.30 : x
  2. Step 2: Convert to fraction form
    191,452.35/287,178.57 = 86,148.30/x
  3. Step 3: Cross multiply
    191,452.35x = 287,178.57 × 86,148.30
  4. Step 4: Simplify right side
    191,452.35x = 24,739,945,601.93
  5. Step 5: Solve for x
    x = 24,739,945,601.93/191,452.35
  6. Step 6: Final answer
    x = 129,222.47

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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.