Home / 136,759.47-188,725.59-76,329.02

Finding the Fourth Proportional to 136,759.47, 188,725.59 and 76,329.02

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Solution

The fourth proportional to 136,759.47, 188,725.59 and 76,329.02 is: 105,332.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,759.47 : 188,725.59 = 76,329.02 : x
  2. Step 2: Convert to fraction form
    136,759.47/188,725.59 = 76,329.02/x
  3. Step 3: Cross multiply
    136,759.47x = 188,725.59 × 76,329.02
  4. Step 4: Simplify right side
    136,759.47x = 14,405,238,389.99
  5. Step 5: Solve for x
    x = 14,405,238,389.99/136,759.47
  6. Step 6: Final answer
    x = 105,332.66

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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.