Home / 137,352.43-189,537.33-76,909.22

Finding the Fourth Proportional to 137,352.43, 189,537.33 and 76,909.22

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Solution

The fourth proportional to 137,352.43, 189,537.33 and 76,909.22 is: 106,129.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,352.43 : 189,537.33 = 76,909.22 : x
  2. Step 2: Convert to fraction form
    137,352.43/189,537.33 = 76,909.22/x
  3. Step 3: Cross multiply
    137,352.43x = 189,537.33 × 76,909.22
  4. Step 4: Simplify right side
    137,352.43x = 14,577,168,262.67
  5. Step 5: Solve for x
    x = 14,577,168,262.67/137,352.43
  6. Step 6: Final answer
    x = 106,129.67

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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.