Home / 125,926.10-188,889.15-72,709.10

Finding the Fourth Proportional to 125,926.10, 188,889.15 and 72,709.10

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Solution

The fourth proportional to 125,926.10, 188,889.15 and 72,709.10 is: 109,063.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,926.10 : 188,889.15 = 72,709.10 : x
  2. Step 2: Convert to fraction form
    125,926.10/188,889.15 = 72,709.10/x
  3. Step 3: Cross multiply
    125,926.10x = 188,889.15 × 72,709.10
  4. Step 4: Simplify right side
    125,926.10x = 13,733,960,096.27
  5. Step 5: Solve for x
    x = 13,733,960,096.27/125,926.10
  6. Step 6: Final answer
    x = 109,063.65

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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.