Home / 129,875.51-194,832.75-45,620.82

Finding the Fourth Proportional to 129,875.51, 194,832.75 and 45,620.82

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Solution

The fourth proportional to 129,875.51, 194,832.75 and 45,620.82 is: 68,438.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,875.51 : 194,832.75 = 45,620.82 : x
  2. Step 2: Convert to fraction form
    129,875.51/194,832.75 = 45,620.82/x
  3. Step 3: Cross multiply
    129,875.51x = 194,832.75 × 45,620.82
  4. Step 4: Simplify right side
    129,875.51x = 8,888,429,817.86
  5. Step 5: Solve for x
    x = 8,888,429,817.86/129,875.51
  6. Step 6: Final answer
    x = 68,438.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.