Home / 127,008.61-190,393.70-42,709.81

Finding the Fourth Proportional to 127,008.61, 190,393.70 and 42,709.81

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Solution

The fourth proportional to 127,008.61, 190,393.70 and 42,709.81 is: 64,024.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,008.61 : 190,393.70 = 42,709.81 : x
  2. Step 2: Convert to fraction form
    127,008.61/190,393.70 = 42,709.81/x
  3. Step 3: Cross multiply
    127,008.61x = 190,393.70 × 42,709.81
  4. Step 4: Simplify right side
    127,008.61x = 8,131,678,752.20
  5. Step 5: Solve for x
    x = 8,131,678,752.20/127,008.61
  6. Step 6: Final answer
    x = 64,024.63

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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.