Home / 123,448.50-170,358.93-66,860.28

Finding the Fourth Proportional to 123,448.50, 170,358.93 and 66,860.28

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Solution

The fourth proportional to 123,448.50, 170,358.93 and 66,860.28 is: 92,267.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,448.50 : 170,358.93 = 66,860.28 : x
  2. Step 2: Convert to fraction form
    123,448.50/170,358.93 = 66,860.28/x
  3. Step 3: Cross multiply
    123,448.50x = 170,358.93 × 66,860.28
  4. Step 4: Simplify right side
    123,448.50x = 11,390,245,760.30
  5. Step 5: Solve for x
    x = 11,390,245,760.30/123,448.50
  6. Step 6: Final answer
    x = 92,267.19

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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.