Home / 137,222.64-189,331.25-79,065.14

Finding the Fourth Proportional to 137,222.64, 189,331.25 and 79,065.14

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Solution

The fourth proportional to 137,222.64, 189,331.25 and 79,065.14 is: 109,089.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,222.64 : 189,331.25 = 79,065.14 : x
  2. Step 2: Convert to fraction form
    137,222.64/189,331.25 = 79,065.14/x
  3. Step 3: Cross multiply
    137,222.64x = 189,331.25 × 79,065.14
  4. Step 4: Simplify right side
    137,222.64x = 14,969,501,200.51
  5. Step 5: Solve for x
    x = 14,969,501,200.51/137,222.64
  6. Step 6: Final answer
    x = 109,089.15

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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.