Home / 191,280.80-263,966.76-106,397.88

Finding the Fourth Proportional to 191,280.80, 263,966.76 and 106,397.88

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Solution

The fourth proportional to 191,280.80, 263,966.76 and 106,397.88 is: 146,828.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,280.80 : 263,966.76 = 106,397.88 : x
  2. Step 2: Convert to fraction form
    191,280.80/263,966.76 = 106,397.88/x
  3. Step 3: Cross multiply
    191,280.80x = 263,966.76 × 106,397.88
  4. Step 4: Simplify right side
    191,280.80x = 28,085,503,654.47
  5. Step 5: Solve for x
    x = 28,085,503,654.47/191,280.80
  6. Step 6: Final answer
    x = 146,828.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.