Home / 112,219.98-154,920.78-86,668.94

Finding the Fourth Proportional to 112,219.98, 154,920.78 and 86,668.94

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Solution

The fourth proportional to 112,219.98, 154,920.78 and 86,668.94 is: 119,647.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,219.98 : 154,920.78 = 86,668.94 : x
  2. Step 2: Convert to fraction form
    112,219.98/154,920.78 = 86,668.94/x
  3. Step 3: Cross multiply
    112,219.98x = 154,920.78 × 86,668.94
  4. Step 4: Simplify right side
    112,219.98x = 13,426,819,011.97
  5. Step 5: Solve for x
    x = 13,426,819,011.97/112,219.98
  6. Step 6: Final answer
    x = 119,647.31

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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.