Home / 119,705.04-165,212.46-72,006.57

Finding the Fourth Proportional to 119,705.04, 165,212.46 and 72,006.57

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Solution

The fourth proportional to 119,705.04, 165,212.46 and 72,006.57 is: 99,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,705.04 : 165,212.46 = 72,006.57 : x
  2. Step 2: Convert to fraction form
    119,705.04/165,212.46 = 72,006.57/x
  3. Step 3: Cross multiply
    119,705.04x = 165,212.46 × 72,006.57
  4. Step 4: Simplify right side
    119,705.04x = 11,896,382,565.86
  5. Step 5: Solve for x
    x = 11,896,382,565.86/119,705.04
  6. Step 6: Final answer
    x = 99,380.80

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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.