Home / 137,317.25-189,501.32-76,900.66

Finding the Fourth Proportional to 137,317.25, 189,501.32 and 76,900.66

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Solution

The fourth proportional to 137,317.25, 189,501.32 and 76,900.66 is: 106,124.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,317.25 : 189,501.32 = 76,900.66 : x
  2. Step 2: Convert to fraction form
    137,317.25/189,501.32 = 76,900.66/x
  3. Step 3: Cross multiply
    137,317.25x = 189,501.32 × 76,900.66
  4. Step 4: Simplify right side
    137,317.25x = 14,572,776,578.87
  5. Step 5: Solve for x
    x = 14,572,776,578.87/137,317.25
  6. Step 6: Final answer
    x = 106,124.88

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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.