Home / 99,521.49-137,330.62-59,228.75

Finding the Fourth Proportional to 99,521.49, 137,330.62 and 59,228.75

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Solution

The fourth proportional to 99,521.49, 137,330.62 and 59,228.75 is: 81,730.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,521.49 : 137,330.62 = 59,228.75 : x
  2. Step 2: Convert to fraction form
    99,521.49/137,330.62 = 59,228.75/x
  3. Step 3: Cross multiply
    99,521.49x = 137,330.62 × 59,228.75
  4. Step 4: Simplify right side
    99,521.49x = 8,133,921,487.74
  5. Step 5: Solve for x
    x = 8,133,921,487.74/99,521.49
  6. Step 6: Final answer
    x = 81,730.30

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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.