Home / 139,130.32-208,524.45-64,146.38

Finding the Fourth Proportional to 139,130.32, 208,524.45 and 64,146.38

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Solution

The fourth proportional to 139,130.32, 208,524.45 and 64,146.38 is: 96,140.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,130.32 : 208,524.45 = 64,146.38 : x
  2. Step 2: Convert to fraction form
    139,130.32/208,524.45 = 64,146.38/x
  3. Step 3: Cross multiply
    139,130.32x = 208,524.45 × 64,146.38
  4. Step 4: Simplify right side
    139,130.32x = 13,376,088,608.99
  5. Step 5: Solve for x
    x = 13,376,088,608.99/139,130.32
  6. Step 6: Final answer
    x = 96,140.72

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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.