Home / 137,310.77-205,988.37-42,518.67

Finding the Fourth Proportional to 137,310.77, 205,988.37 and 42,518.67

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Solution

The fourth proportional to 137,310.77, 205,988.37 and 42,518.67 is: 63,784.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,310.77 : 205,988.37 = 42,518.67 : x
  2. Step 2: Convert to fraction form
    137,310.77/205,988.37 = 42,518.67/x
  3. Step 3: Cross multiply
    137,310.77x = 205,988.37 × 42,518.67
  4. Step 4: Simplify right side
    137,310.77x = 8,758,351,315.27
  5. Step 5: Solve for x
    x = 8,758,351,315.27/137,310.77
  6. Step 6: Final answer
    x = 63,784.88

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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.