Home / 124,211.58-171,612.39-86,653.50

Finding the Fourth Proportional to 124,211.58, 171,612.39 and 86,653.50

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Solution

The fourth proportional to 124,211.58, 171,612.39 and 86,653.50 is: 119,721.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,211.58 : 171,612.39 = 86,653.50 : x
  2. Step 2: Convert to fraction form
    124,211.58/171,612.39 = 86,653.50/x
  3. Step 3: Cross multiply
    124,211.58x = 171,612.39 × 86,653.50
  4. Step 4: Simplify right side
    124,211.58x = 14,870,814,236.87
  5. Step 5: Solve for x
    x = 14,870,814,236.87/124,211.58
  6. Step 6: Final answer
    x = 119,721.64

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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.