Home / 137,500.56-189,758.52-77,090.76

Finding the Fourth Proportional to 137,500.56, 189,758.52 and 77,090.76

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Solution

The fourth proportional to 137,500.56, 189,758.52 and 77,090.76 is: 106,389.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,500.56 : 189,758.52 = 77,090.76 : x
  2. Step 2: Convert to fraction form
    137,500.56/189,758.52 = 77,090.76/x
  3. Step 3: Cross multiply
    137,500.56x = 189,758.52 × 77,090.76
  4. Step 4: Simplify right side
    137,500.56x = 14,628,628,523.28
  5. Step 5: Solve for x
    x = 14,628,628,523.28/137,500.56
  6. Step 6: Final answer
    x = 106,389.59

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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.