Home / 191,557.74-287,336.07-86,253.42

Finding the Fourth Proportional to 191,557.74, 287,336.07 and 86,253.42

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Solution

The fourth proportional to 191,557.74, 287,336.07 and 86,253.42 is: 129,379.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,557.74 : 287,336.07 = 86,253.42 : x
  2. Step 2: Convert to fraction form
    191,557.74/287,336.07 = 86,253.42/x
  3. Step 3: Cross multiply
    191,557.74x = 287,336.07 × 86,253.42
  4. Step 4: Simplify right side
    191,557.74x = 24,783,718,726.86
  5. Step 5: Solve for x
    x = 24,783,718,726.86/191,557.74
  6. Step 6: Final answer
    x = 129,379.89

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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.