Home / 140,152.85-210,104.28-51,385.67

Finding the Fourth Proportional to 140,152.85, 210,104.28 and 51,385.67

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Solution

The fourth proportional to 140,152.85, 210,104.28 and 51,385.67 is: 77,032.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,152.85 : 210,104.28 = 51,385.67 : x
  2. Step 2: Convert to fraction form
    140,152.85/210,104.28 = 51,385.67/x
  3. Step 3: Cross multiply
    140,152.85x = 210,104.28 × 51,385.67
  4. Step 4: Simplify right side
    140,152.85x = 10,796,349,197.67
  5. Step 5: Solve for x
    x = 10,796,349,197.67/140,152.85
  6. Step 6: Final answer
    x = 77,032.68

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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.