Home / 122,219.14-168,346.93-86,346.87

Finding the Fourth Proportional to 122,219.14, 168,346.93 and 86,346.87

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Solution

The fourth proportional to 122,219.14, 168,346.93 and 86,346.87 is: 118,935.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,219.14 : 168,346.93 = 86,346.87 : x
  2. Step 2: Convert to fraction form
    122,219.14/168,346.93 = 86,346.87/x
  3. Step 3: Cross multiply
    122,219.14x = 168,346.93 × 86,346.87
  4. Step 4: Simplify right side
    122,219.14x = 14,536,230,479.61
  5. Step 5: Solve for x
    x = 14,536,230,479.61/122,219.14
  6. Step 6: Final answer
    x = 118,935.79

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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.