Home / 137,830.42-206,343.96-102,448.45

Finding the Fourth Proportional to 137,830.42, 206,343.96 and 102,448.45

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Solution

The fourth proportional to 137,830.42, 206,343.96 and 102,448.45 is: 153,374.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,830.42 : 206,343.96 = 102,448.45 : x
  2. Step 2: Convert to fraction form
    137,830.42/206,343.96 = 102,448.45/x
  3. Step 3: Cross multiply
    137,830.42x = 206,343.96 × 102,448.45
  4. Step 4: Simplify right side
    137,830.42x = 21,139,618,868.86
  5. Step 5: Solve for x
    x = 21,139,618,868.86/137,830.42
  6. Step 6: Final answer
    x = 153,374.12

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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.