Home / 123,448.85-170,359.64-66,860.24

Finding the Fourth Proportional to 123,448.85, 170,359.64 and 66,860.24

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Solution

The fourth proportional to 123,448.85, 170,359.64 and 66,860.24 is: 92,267.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,448.85 : 170,359.64 = 66,860.24 : x
  2. Step 2: Convert to fraction form
    123,448.85/170,359.64 = 66,860.24/x
  3. Step 3: Cross multiply
    123,448.85x = 170,359.64 × 66,860.24
  4. Step 4: Simplify right side
    123,448.85x = 11,390,286,416.71
  5. Step 5: Solve for x
    x = 11,390,286,416.71/123,448.85
  6. Step 6: Final answer
    x = 92,267.25

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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.