Home / 123,669.64-170,664.12-69,953.50

Finding the Fourth Proportional to 123,669.64, 170,664.12 and 69,953.50

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Solution

The fourth proportional to 123,669.64, 170,664.12 and 69,953.50 is: 96,535.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,669.64 : 170,664.12 = 69,953.50 : x
  2. Step 2: Convert to fraction form
    123,669.64/170,664.12 = 69,953.50/x
  3. Step 3: Cross multiply
    123,669.64x = 170,664.12 × 69,953.50
  4. Step 4: Simplify right side
    123,669.64x = 11,938,552,518.42
  5. Step 5: Solve for x
    x = 11,938,552,518.42/123,669.64
  6. Step 6: Final answer
    x = 96,535.84

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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.