Home / 126,842.52-190,225.82-79,529.51

Finding the Fourth Proportional to 126,842.52, 190,225.82 and 79,529.51

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Solution

The fourth proportional to 126,842.52, 190,225.82 and 79,529.51 is: 119,270.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,842.52 : 190,225.82 = 79,529.51 : x
  2. Step 2: Convert to fraction form
    126,842.52/190,225.82 = 79,529.51/x
  3. Step 3: Cross multiply
    126,842.52x = 190,225.82 × 79,529.51
  4. Step 4: Simplify right side
    126,842.52x = 15,128,564,905.17
  5. Step 5: Solve for x
    x = 15,128,564,905.17/126,842.52
  6. Step 6: Final answer
    x = 119,270.45

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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.