Home / 143,922.30-198,693.93-99,799.58

Finding the Fourth Proportional to 143,922.30, 198,693.93 and 99,799.58

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Solution

The fourth proportional to 143,922.30, 198,693.93 and 99,799.58 is: 137,779.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,922.30 : 198,693.93 = 99,799.58 : x
  2. Step 2: Convert to fraction form
    143,922.30/198,693.93 = 99,799.58/x
  3. Step 3: Cross multiply
    143,922.30x = 198,693.93 × 99,799.58
  4. Step 4: Simplify right side
    143,922.30x = 19,829,569,769.08
  5. Step 5: Solve for x
    x = 19,829,569,769.08/143,922.30
  6. Step 6: Final answer
    x = 137,779.69

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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.