Home / 122,427.12-168,950.15-67,980.06

Finding the Fourth Proportional to 122,427.12, 168,950.15 and 67,980.06

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Solution

The fourth proportional to 122,427.12, 168,950.15 and 67,980.06 is: 93,812.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,427.12 : 168,950.15 = 67,980.06 : x
  2. Step 2: Convert to fraction form
    122,427.12/168,950.15 = 67,980.06/x
  3. Step 3: Cross multiply
    122,427.12x = 168,950.15 × 67,980.06
  4. Step 4: Simplify right side
    122,427.12x = 11,485,240,994.11
  5. Step 5: Solve for x
    x = 11,485,240,994.11/122,427.12
  6. Step 6: Final answer
    x = 93,812.88

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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.