Home / 143,612.58-198,118.85-92,641.74

Finding the Fourth Proportional to 143,612.58, 198,118.85 and 92,641.74

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Solution

The fourth proportional to 143,612.58, 198,118.85 and 92,641.74 is: 127,802.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,612.58 : 198,118.85 = 92,641.74 : x
  2. Step 2: Convert to fraction form
    143,612.58/198,118.85 = 92,641.74/x
  3. Step 3: Cross multiply
    143,612.58x = 198,118.85 × 92,641.74
  4. Step 4: Simplify right side
    143,612.58x = 18,354,074,990.80
  5. Step 5: Solve for x
    x = 18,354,074,990.80/143,612.58
  6. Step 6: Final answer
    x = 127,802.70

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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.