Home / 139,109.81-208,589.18-63,166.64

Finding the Fourth Proportional to 139,109.81, 208,589.18 and 63,166.64

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Solution

The fourth proportional to 139,109.81, 208,589.18 and 63,166.64 is: 94,715.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,109.81 : 208,589.18 = 63,166.64 : x
  2. Step 2: Convert to fraction form
    139,109.81/208,589.18 = 63,166.64/x
  3. Step 3: Cross multiply
    139,109.81x = 208,589.18 × 63,166.64
  4. Step 4: Simplify right side
    139,109.81x = 13,175,876,282.18
  5. Step 5: Solve for x
    x = 13,175,876,282.18/139,109.81
  6. Step 6: Final answer
    x = 94,715.65

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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.