Home / 137,132.36-189,260.18-76,706.36

Finding the Fourth Proportional to 137,132.36, 189,260.18 and 76,706.36

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Solution

The fourth proportional to 137,132.36, 189,260.18 and 76,706.36 is: 105,864.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,132.36 : 189,260.18 = 76,706.36 : x
  2. Step 2: Convert to fraction form
    137,132.36/189,260.18 = 76,706.36/x
  3. Step 3: Cross multiply
    137,132.36x = 189,260.18 × 76,706.36
  4. Step 4: Simplify right side
    137,132.36x = 14,517,459,500.74
  5. Step 5: Solve for x
    x = 14,517,459,500.74/137,132.36
  6. Step 6: Final answer
    x = 105,864.58

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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.