Home / 137,411.07-189,626.86-76,161.17

Finding the Fourth Proportional to 137,411.07, 189,626.86 and 76,161.17

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Solution

The fourth proportional to 137,411.07, 189,626.86 and 76,161.17 is: 105,102.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,411.07 : 189,626.86 = 76,161.17 : x
  2. Step 2: Convert to fraction form
    137,411.07/189,626.86 = 76,161.17/x
  3. Step 3: Cross multiply
    137,411.07x = 189,626.86 × 76,161.17
  4. Step 4: Simplify right side
    137,411.07x = 14,442,203,521.03
  5. Step 5: Solve for x
    x = 14,442,203,521.03/137,411.07
  6. Step 6: Final answer
    x = 105,102.18

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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.