Home / 102,077.40-140,882.13-73,491.67

Finding the Fourth Proportional to 102,077.40, 140,882.13 and 73,491.67

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Solution

The fourth proportional to 102,077.40, 140,882.13 and 73,491.67 is: 101,429.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,077.40 : 140,882.13 = 73,491.67 : x
  2. Step 2: Convert to fraction form
    102,077.40/140,882.13 = 73,491.67/x
  3. Step 3: Cross multiply
    102,077.40x = 140,882.13 × 73,491.67
  4. Step 4: Simplify right side
    102,077.40x = 10,353,663,006.86
  5. Step 5: Solve for x
    x = 10,353,663,006.86/102,077.40
  6. Step 6: Final answer
    x = 101,429.53

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1.5x scale

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.