Home / 126,719.98-190,122.18-42,488.50

Finding the Fourth Proportional to 126,719.98, 190,122.18 and 42,488.50

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Solution

The fourth proportional to 126,719.98, 190,122.18 and 42,488.50 is: 63,746.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,719.98 : 190,122.18 = 42,488.50 : x
  2. Step 2: Convert to fraction form
    126,719.98/190,122.18 = 42,488.50/x
  3. Step 3: Cross multiply
    126,719.98x = 190,122.18 × 42,488.50
  4. Step 4: Simplify right side
    126,719.98x = 8,078,006,244.93
  5. Step 5: Solve for x
    x = 8,078,006,244.93/126,719.98
  6. Step 6: Final answer
    x = 63,746.90

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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.