Home / 126,981.95-190,305.79-70,848.47

Finding the Fourth Proportional to 126,981.95, 190,305.79 and 70,848.47

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Solution

The fourth proportional to 126,981.95, 190,305.79 and 70,848.47 is: 106,179.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,981.95 : 190,305.79 = 70,848.47 : x
  2. Step 2: Convert to fraction form
    126,981.95/190,305.79 = 70,848.47/x
  3. Step 3: Cross multiply
    126,981.95x = 190,305.79 × 70,848.47
  4. Step 4: Simplify right side
    126,981.95x = 13,482,874,352.28
  5. Step 5: Solve for x
    x = 13,482,874,352.28/126,981.95
  6. Step 6: Final answer
    x = 106,179.46

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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.