Home / 123,766.08-170,779.68-73,485.12

Finding the Fourth Proportional to 123,766.08, 170,779.68 and 73,485.12

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Solution

The fourth proportional to 123,766.08, 170,779.68 and 73,485.12 is: 101,399.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,766.08 : 170,779.68 = 73,485.12 : x
  2. Step 2: Convert to fraction form
    123,766.08/170,779.68 = 73,485.12/x
  3. Step 3: Cross multiply
    123,766.08x = 170,779.68 × 73,485.12
  4. Step 4: Simplify right side
    123,766.08x = 12,549,765,278.36
  5. Step 5: Solve for x
    x = 12,549,765,278.36/123,766.08
  6. Step 6: Final answer
    x = 101,399.07

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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.