Home / 123,412.08-170,308.80-66,823.32

Finding the Fourth Proportional to 123,412.08, 170,308.80 and 66,823.32

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Solution

The fourth proportional to 123,412.08, 170,308.80 and 66,823.32 is: 92,216.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,412.08 : 170,308.80 = 66,823.32 : x
  2. Step 2: Convert to fraction form
    123,412.08/170,308.80 = 66,823.32/x
  3. Step 3: Cross multiply
    123,412.08x = 170,308.80 × 66,823.32
  4. Step 4: Simplify right side
    123,412.08x = 11,380,599,441.22
  5. Step 5: Solve for x
    x = 11,380,599,441.22/123,412.08
  6. Step 6: Final answer
    x = 92,216.25

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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.