Home / 126,038.10-173,930.52-68,678.11

Finding the Fourth Proportional to 126,038.10, 173,930.52 and 68,678.11

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Solution

The fourth proportional to 126,038.10, 173,930.52 and 68,678.11 is: 94,774.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,038.10 : 173,930.52 = 68,678.11 : x
  2. Step 2: Convert to fraction form
    126,038.10/173,930.52 = 68,678.11/x
  3. Step 3: Cross multiply
    126,038.10x = 173,930.52 × 68,678.11
  4. Step 4: Simplify right side
    126,038.10x = 11,945,219,384.92
  5. Step 5: Solve for x
    x = 11,945,219,384.92/126,038.10
  6. Step 6: Final answer
    x = 94,774.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.