Home / 140,780.09-211,126.01-45,988.67

Finding the Fourth Proportional to 140,780.09, 211,126.01 and 45,988.67

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Solution

The fourth proportional to 140,780.09, 211,126.01 and 45,988.67 is: 68,968.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,780.09 : 211,126.01 = 45,988.67 : x
  2. Step 2: Convert to fraction form
    140,780.09/211,126.01 = 45,988.67/x
  3. Step 3: Cross multiply
    140,780.09x = 211,126.01 × 45,988.67
  4. Step 4: Simplify right side
    140,780.09x = 9,709,404,402.31
  5. Step 5: Solve for x
    x = 9,709,404,402.31/140,780.09
  6. Step 6: Final answer
    x = 68,968.59

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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.