Home / 126,848.80-190,140.36-42,588.28

Finding the Fourth Proportional to 126,848.80, 190,140.36 and 42,588.28

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Solution

The fourth proportional to 126,848.80, 190,140.36 and 42,588.28 is: 63,837.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,848.80 : 190,140.36 = 42,588.28 : x
  2. Step 2: Convert to fraction form
    126,848.80/190,140.36 = 42,588.28/x
  3. Step 3: Cross multiply
    126,848.80x = 190,140.36 × 42,588.28
  4. Step 4: Simplify right side
    126,848.80x = 8,097,750,890.98
  5. Step 5: Solve for x
    x = 8,097,750,890.98/126,848.80
  6. Step 6: Final answer
    x = 63,837.82

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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.