Home / 99,396.18-137,121.53-59,087.07

Finding the Fourth Proportional to 99,396.18, 137,121.53 and 59,087.07

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Solution

The fourth proportional to 99,396.18, 137,121.53 and 59,087.07 is: 81,513.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,396.18 : 137,121.53 = 59,087.07 : x
  2. Step 2: Convert to fraction form
    99,396.18/137,121.53 = 59,087.07/x
  3. Step 3: Cross multiply
    99,396.18x = 137,121.53 × 59,087.07
  4. Step 4: Simplify right side
    99,396.18x = 8,102,109,146.18
  5. Step 5: Solve for x
    x = 8,102,109,146.18/99,396.18
  6. Step 6: Final answer
    x = 81,513.28

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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.