Home / 99,186.75-136,880.82-56,165.58

Finding the Fourth Proportional to 99,186.75, 136,880.82 and 56,165.58

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Solution

The fourth proportional to 99,186.75, 136,880.82 and 56,165.58 is: 77,510.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,186.75 : 136,880.82 = 56,165.58 : x
  2. Step 2: Convert to fraction form
    99,186.75/136,880.82 = 56,165.58/x
  3. Step 3: Cross multiply
    99,186.75x = 136,880.82 × 56,165.58
  4. Step 4: Simplify right side
    99,186.75x = 7,687,990,646.18
  5. Step 5: Solve for x
    x = 7,687,990,646.18/99,186.75
  6. Step 6: Final answer
    x = 77,510.26

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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.