Home / 139,934.32-209,823.68-56,731.12

Finding the Fourth Proportional to 139,934.32, 209,823.68 and 56,731.12

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Solution

The fourth proportional to 139,934.32, 209,823.68 and 56,731.12 is: 85,065.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,934.32 : 209,823.68 = 56,731.12 : x
  2. Step 2: Convert to fraction form
    139,934.32/209,823.68 = 56,731.12/x
  3. Step 3: Cross multiply
    139,934.32x = 209,823.68 × 56,731.12
  4. Step 4: Simplify right side
    139,934.32x = 11,903,532,368.92
  5. Step 5: Solve for x
    x = 11,903,532,368.92/139,934.32
  6. Step 6: Final answer
    x = 85,065.14

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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.