Home / 140,153.85-210,105.78-51,386.67

Finding the Fourth Proportional to 140,153.85, 210,105.78 and 51,386.67

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Solution

The fourth proportional to 140,153.85, 210,105.78 and 51,386.67 is: 77,034.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,153.85 : 210,105.78 = 51,386.67 : x
  2. Step 2: Convert to fraction form
    140,153.85/210,105.78 = 51,386.67/x
  3. Step 3: Cross multiply
    140,153.85x = 210,105.78 × 51,386.67
  4. Step 4: Simplify right side
    140,153.85x = 10,796,636,381.95
  5. Step 5: Solve for x
    x = 10,796,636,381.95/140,153.85
  6. Step 6: Final answer
    x = 77,034.18

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1.5x scale

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.