Home / 99,114.84-136,764.05-56,665.17

Finding the Fourth Proportional to 99,114.84, 136,764.05 and 56,665.17

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Solution

The fourth proportional to 99,114.84, 136,764.05 and 56,665.17 is: 78,189.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,114.84 : 136,764.05 = 56,665.17 : x
  2. Step 2: Convert to fraction form
    99,114.84/136,764.05 = 56,665.17/x
  3. Step 3: Cross multiply
    99,114.84x = 136,764.05 × 56,665.17
  4. Step 4: Simplify right side
    99,114.84x = 7,749,757,859.81
  5. Step 5: Solve for x
    x = 7,749,757,859.81/99,114.84
  6. Step 6: Final answer
    x = 78,189.68

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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.