Home / 143,547.35-198,086.90-83,113.70

Finding the Fourth Proportional to 143,547.35, 198,086.90 and 83,113.70

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Solution

The fourth proportional to 143,547.35, 198,086.90 and 83,113.70 is: 114,692.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,547.35 : 198,086.90 = 83,113.70 : x
  2. Step 2: Convert to fraction form
    143,547.35/198,086.90 = 83,113.70/x
  3. Step 3: Cross multiply
    143,547.35x = 198,086.90 × 83,113.70
  4. Step 4: Simplify right side
    143,547.35x = 16,463,733,774.53
  5. Step 5: Solve for x
    x = 16,463,733,774.53/143,547.35
  6. Step 6: Final answer
    x = 114,692.01

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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.