Home / 99,159.12-136,838.83-53,836.21

Finding the Fourth Proportional to 99,159.12, 136,838.83 and 53,836.21

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Solution

The fourth proportional to 99,159.12, 136,838.83 and 53,836.21 is: 74,293.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,159.12 : 136,838.83 = 53,836.21 : x
  2. Step 2: Convert to fraction form
    99,159.12/136,838.83 = 53,836.21/x
  3. Step 3: Cross multiply
    99,159.12x = 136,838.83 × 53,836.21
  4. Step 4: Simplify right side
    99,159.12x = 7,366,883,988.03
  5. Step 5: Solve for x
    x = 7,366,883,988.03/99,159.12
  6. Step 6: Final answer
    x = 74,293.56

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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.