Home / 127,678.28-191,486.66-56,561.63

Finding the Fourth Proportional to 127,678.28, 191,486.66 and 56,561.63

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Solution

The fourth proportional to 127,678.28, 191,486.66 and 56,561.63 is: 84,828.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,678.28 : 191,486.66 = 56,561.63 : x
  2. Step 2: Convert to fraction form
    127,678.28/191,486.66 = 56,561.63/x
  3. Step 3: Cross multiply
    127,678.28x = 191,486.66 × 56,561.63
  4. Step 4: Simplify right side
    127,678.28x = 10,830,796,372.61
  5. Step 5: Solve for x
    x = 10,830,796,372.61/127,678.28
  6. Step 6: Final answer
    x = 84,828.81

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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.