Home / 127,006.61-190,390.70-42,707.81

Finding the Fourth Proportional to 127,006.61, 190,390.70 and 42,707.81

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Solution

The fourth proportional to 127,006.61, 190,390.70 and 42,707.81 is: 64,021.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,006.61 : 190,390.70 = 42,707.81 : x
  2. Step 2: Convert to fraction form
    127,006.61/190,390.70 = 42,707.81/x
  3. Step 3: Cross multiply
    127,006.61x = 190,390.70 × 42,707.81
  4. Step 4: Simplify right side
    127,006.61x = 8,131,170,424.11
  5. Step 5: Solve for x
    x = 8,131,170,424.11/127,006.61
  6. Step 6: Final answer
    x = 64,021.63

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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.