Home / 137,437.61-189,646.27-76,993.38

Finding the Fourth Proportional to 137,437.61, 189,646.27 and 76,993.38

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Solution

The fourth proportional to 137,437.61, 189,646.27 and 76,993.38 is: 106,240.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,437.61 : 189,646.27 = 76,993.38 : x
  2. Step 2: Convert to fraction form
    137,437.61/189,646.27 = 76,993.38/x
  3. Step 3: Cross multiply
    137,437.61x = 189,646.27 × 76,993.38
  4. Step 4: Simplify right side
    137,437.61x = 14,601,507,139.21
  5. Step 5: Solve for x
    x = 14,601,507,139.21/137,437.61
  6. Step 6: Final answer
    x = 106,240.99

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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.