Home / 127,871.34-191,798.97-39,117.79

Finding the Fourth Proportional to 127,871.34, 191,798.97 and 39,117.79

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Solution

The fourth proportional to 127,871.34, 191,798.97 and 39,117.79 is: 58,674.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,871.34 : 191,798.97 = 39,117.79 : x
  2. Step 2: Convert to fraction form
    127,871.34/191,798.97 = 39,117.79/x
  3. Step 3: Cross multiply
    127,871.34x = 191,798.97 × 39,117.79
  4. Step 4: Simplify right side
    127,871.34x = 7,502,751,830.68
  5. Step 5: Solve for x
    x = 7,502,751,830.68/127,871.34
  6. Step 6: Final answer
    x = 58,674.23

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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.