Home / 72,143.83-108,217.59-34,184.19

Finding the Fourth Proportional to 72,143.83, 108,217.59 and 34,184.19

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Solution

The fourth proportional to 72,143.83, 108,217.59 and 34,184.19 is: 51,277.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,143.83 : 108,217.59 = 34,184.19 : x
  2. Step 2: Convert to fraction form
    72,143.83/108,217.59 = 34,184.19/x
  3. Step 3: Cross multiply
    72,143.83x = 108,217.59 × 34,184.19
  4. Step 4: Simplify right side
    72,143.83x = 3,699,330,657.90
  5. Step 5: Solve for x
    x = 3,699,330,657.90/72,143.83
  6. Step 6: Final answer
    x = 51,277.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.