Home / 122,427.24-168,966.08-68,715.20

Finding the Fourth Proportional to 122,427.24, 168,966.08 and 68,715.20

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Solution

The fourth proportional to 122,427.24, 168,966.08 and 68,715.20 is: 94,836.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,427.24 : 168,966.08 = 68,715.20 : x
  2. Step 2: Convert to fraction form
    122,427.24/168,966.08 = 68,715.20/x
  3. Step 3: Cross multiply
    122,427.24x = 168,966.08 × 68,715.20
  4. Step 4: Simplify right side
    122,427.24x = 11,610,537,980.42
  5. Step 5: Solve for x
    x = 11,610,537,980.42/122,427.24
  6. Step 6: Final answer
    x = 94,836.23

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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.