Home / 127,726.71-191,624.64-47,772.78

Finding the Fourth Proportional to 127,726.71, 191,624.64 and 47,772.78

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Solution

The fourth proportional to 127,726.71, 191,624.64 and 47,772.78 is: 71,672.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,726.71 : 191,624.64 = 47,772.78 : x
  2. Step 2: Convert to fraction form
    127,726.71/191,624.64 = 47,772.78/x
  3. Step 3: Cross multiply
    127,726.71x = 191,624.64 × 47,772.78
  4. Step 4: Simplify right side
    127,726.71x = 9,154,441,769.30
  5. Step 5: Solve for x
    x = 9,154,441,769.30/127,726.71
  6. Step 6: Final answer
    x = 71,672.10

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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.