Home / 136,700.56-188,661.36-76,292.20

Finding the Fourth Proportional to 136,700.56, 188,661.36 and 76,292.20

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Solution

The fourth proportional to 136,700.56, 188,661.36 and 76,292.20 is: 105,291.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,700.56 : 188,661.36 = 76,292.20 : x
  2. Step 2: Convert to fraction form
    136,700.56/188,661.36 = 76,292.20/x
  3. Step 3: Cross multiply
    136,700.56x = 188,661.36 × 76,292.20
  4. Step 4: Simplify right side
    136,700.56x = 14,393,390,209.39
  5. Step 5: Solve for x
    x = 14,393,390,209.39/136,700.56
  6. Step 6: Final answer
    x = 105,291.38

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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.