Home / 144,212.12-199,011.63-83,818.16

Finding the Fourth Proportional to 144,212.12, 199,011.63 and 83,818.16

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Solution

The fourth proportional to 144,212.12, 199,011.63 and 83,818.16 is: 115,668.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,212.12 : 199,011.63 = 83,818.16 : x
  2. Step 2: Convert to fraction form
    144,212.12/199,011.63 = 83,818.16/x
  3. Step 3: Cross multiply
    144,212.12x = 199,011.63 × 83,818.16
  4. Step 4: Simplify right side
    144,212.12x = 16,680,788,645.20
  5. Step 5: Solve for x
    x = 16,680,788,645.20/144,212.12
  6. Step 6: Final answer
    x = 115,668.42

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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.