Home / 191,780.17-287,670.45-103,594.39

Finding the Fourth Proportional to 191,780.17, 287,670.45 and 103,594.39

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Solution

The fourth proportional to 191,780.17, 287,670.45 and 103,594.39 is: 155,391.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,780.17 : 287,670.45 = 103,594.39 : x
  2. Step 2: Convert to fraction form
    191,780.17/287,670.45 = 103,594.39/x
  3. Step 3: Cross multiply
    191,780.17x = 287,670.45 × 103,594.39
  4. Step 4: Simplify right side
    191,780.17x = 29,801,044,788.78
  5. Step 5: Solve for x
    x = 29,801,044,788.78/191,780.17
  6. Step 6: Final answer
    x = 155,391.69

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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.