Home / 143,948.53-198,688.51-83,538.63

Finding the Fourth Proportional to 143,948.53, 198,688.51 and 83,538.63

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Solution

The fourth proportional to 143,948.53, 198,688.51 and 83,538.63 is: 115,306.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,948.53 : 198,688.51 = 83,538.63 : x
  2. Step 2: Convert to fraction form
    143,948.53/198,688.51 = 83,538.63/x
  3. Step 3: Cross multiply
    143,948.53x = 198,688.51 × 83,538.63
  4. Step 4: Simplify right side
    143,948.53x = 16,598,165,922.14
  5. Step 5: Solve for x
    x = 16,598,165,922.14/143,948.53
  6. Step 6: Final answer
    x = 115,306.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.