Home / 99,210.88-136,912.04-53,889.32

Finding the Fourth Proportional to 99,210.88, 136,912.04 and 53,889.32

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Solution

The fourth proportional to 99,210.88, 136,912.04 and 53,889.32 is: 74,367.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,210.88 : 136,912.04 = 53,889.32 : x
  2. Step 2: Convert to fraction form
    99,210.88/136,912.04 = 53,889.32/x
  3. Step 3: Cross multiply
    99,210.88x = 136,912.04 × 53,889.32
  4. Step 4: Simplify right side
    99,210.88x = 7,378,096,735.41
  5. Step 5: Solve for x
    x = 7,378,096,735.41/99,210.88
  6. Step 6: Final answer
    x = 74,367.82

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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.