Home / 137,087.17-189,197.88-76,661.17

Finding the Fourth Proportional to 137,087.17, 189,197.88 and 76,661.17

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Solution

The fourth proportional to 137,087.17, 189,197.88 and 76,661.17 is: 105,802.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,087.17 : 189,197.88 = 76,661.17 : x
  2. Step 2: Convert to fraction form
    137,087.17/189,197.88 = 76,661.17/x
  3. Step 3: Cross multiply
    137,087.17x = 189,197.88 × 76,661.17
  4. Step 4: Simplify right side
    137,087.17x = 14,504,130,081.85
  5. Step 5: Solve for x
    x = 14,504,130,081.85/137,087.17
  6. Step 6: Final answer
    x = 105,802.24

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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.