Home / 99,946.77-137,913.20-64,185.22

Finding the Fourth Proportional to 99,946.77, 137,913.20 and 64,185.22

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Solution

The fourth proportional to 99,946.77, 137,913.20 and 64,185.22 is: 88,567.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,946.77 : 137,913.20 = 64,185.22 : x
  2. Step 2: Convert to fraction form
    99,946.77/137,913.20 = 64,185.22/x
  3. Step 3: Cross multiply
    99,946.77x = 137,913.20 × 64,185.22
  4. Step 4: Simplify right side
    99,946.77x = 8,851,988,898.58
  5. Step 5: Solve for x
    x = 8,851,988,898.58/99,946.77
  6. Step 6: Final answer
    x = 88,567.03

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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.