Home / 145,419.08-200,675.42-80,886.92

Finding the Fourth Proportional to 145,419.08, 200,675.42 and 80,886.92

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Solution

The fourth proportional to 145,419.08, 200,675.42 and 80,886.92 is: 111,622.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,419.08 : 200,675.42 = 80,886.92 : x
  2. Step 2: Convert to fraction form
    145,419.08/200,675.42 = 80,886.92/x
  3. Step 3: Cross multiply
    145,419.08x = 200,675.42 × 80,886.92
  4. Step 4: Simplify right side
    145,419.08x = 16,232,016,643.51
  5. Step 5: Solve for x
    x = 16,232,016,643.51/145,419.08
  6. Step 6: Final answer
    x = 111,622.33

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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.