Home / 122,639.04-169,178.28-82,364.22

Finding the Fourth Proportional to 122,639.04, 169,178.28 and 82,364.22

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Solution

The fourth proportional to 122,639.04, 169,178.28 and 82,364.22 is: 113,619.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,639.04 : 169,178.28 = 82,364.22 : x
  2. Step 2: Convert to fraction form
    122,639.04/169,178.28 = 82,364.22/x
  3. Step 3: Cross multiply
    122,639.04x = 169,178.28 × 82,364.22
  4. Step 4: Simplify right side
    122,639.04x = 13,934,237,073.14
  5. Step 5: Solve for x
    x = 13,934,237,073.14/122,639.04
  6. Step 6: Final answer
    x = 113,619.91

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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.