Home / 126,886.50-190,332.79-42,647.72

Finding the Fourth Proportional to 126,886.50, 190,332.79 and 42,647.72

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Solution

The fourth proportional to 126,886.50, 190,332.79 and 42,647.72 is: 63,972.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,886.50 : 190,332.79 = 42,647.72 : x
  2. Step 2: Convert to fraction form
    126,886.50/190,332.79 = 42,647.72/x
  3. Step 3: Cross multiply
    126,886.50x = 190,332.79 × 42,647.72
  4. Step 4: Simplify right side
    126,886.50x = 8,117,258,476.46
  5. Step 5: Solve for x
    x = 8,117,258,476.46/126,886.50
  6. Step 6: Final answer
    x = 63,972.59

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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.