Home / 119,863.08-165,426.30-72,142.20

Finding the Fourth Proportional to 119,863.08, 165,426.30 and 72,142.20

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Solution

The fourth proportional to 119,863.08, 165,426.30 and 72,142.20 is: 99,565.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,863.08 : 165,426.30 = 72,142.20 : x
  2. Step 2: Convert to fraction form
    119,863.08/165,426.30 = 72,142.20/x
  3. Step 3: Cross multiply
    119,863.08x = 165,426.30 × 72,142.20
  4. Step 4: Simplify right side
    119,863.08x = 11,934,217,219.86
  5. Step 5: Solve for x
    x = 11,934,217,219.86/119,863.08
  6. Step 6: Final answer
    x = 99,565.41

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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.