Home / 127,866.42-191,792.70-39,119.91

Finding the Fourth Proportional to 127,866.42, 191,792.70 and 39,119.91

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Solution

The fourth proportional to 127,866.42, 191,792.70 and 39,119.91 is: 58,677.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,866.42 : 191,792.70 = 39,119.91 : x
  2. Step 2: Convert to fraction form
    127,866.42/191,792.70 = 39,119.91/x
  3. Step 3: Cross multiply
    127,866.42x = 191,792.70 × 39,119.91
  4. Step 4: Simplify right side
    127,866.42x = 7,502,913,162.66
  5. Step 5: Solve for x
    x = 7,502,913,162.66/127,866.42
  6. Step 6: Final answer
    x = 58,677.74

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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.