Home / 123,564.15-170,529.10-69,858.72

Finding the Fourth Proportional to 123,564.15, 170,529.10 and 69,858.72

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Solution

The fourth proportional to 123,564.15, 170,529.10 and 69,858.72 is: 96,411.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,564.15 : 170,529.10 = 69,858.72 : x
  2. Step 2: Convert to fraction form
    123,564.15/170,529.10 = 69,858.72/x
  3. Step 3: Cross multiply
    123,564.15x = 170,529.10 × 69,858.72
  4. Step 4: Simplify right side
    123,564.15x = 11,912,944,474.11
  5. Step 5: Solve for x
    x = 11,912,944,474.11/123,564.15
  6. Step 6: Final answer
    x = 96,411.01

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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.