Home / 99,220.01-136,935.56-56,777.63

Finding the Fourth Proportional to 99,220.01, 136,935.56 and 56,777.63

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Solution

The fourth proportional to 99,220.01, 136,935.56 and 56,777.63 is: 78,359.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,220.01 : 136,935.56 = 56,777.63 : x
  2. Step 2: Convert to fraction form
    99,220.01/136,935.56 = 56,777.63/x
  3. Step 3: Cross multiply
    99,220.01x = 136,935.56 × 56,777.63
  4. Step 4: Simplify right side
    99,220.01x = 7,774,876,016.79
  5. Step 5: Solve for x
    x = 7,774,876,016.79/99,220.01
  6. Step 6: Final answer
    x = 78,359.96

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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.