Home / 125,875.35-188,931.69-45,990.72

Finding the Fourth Proportional to 125,875.35, 188,931.69 and 45,990.72

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Solution

The fourth proportional to 125,875.35, 188,931.69 and 45,990.72 is: 69,029.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,875.35 : 188,931.69 = 45,990.72 : x
  2. Step 2: Convert to fraction form
    125,875.35/188,931.69 = 45,990.72/x
  3. Step 3: Cross multiply
    125,875.35x = 188,931.69 × 45,990.72
  4. Step 4: Simplify right side
    125,875.35x = 8,689,104,453.92
  5. Step 5: Solve for x
    x = 8,689,104,453.92/125,875.35
  6. Step 6: Final answer
    x = 69,029.44

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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.