Home / 112,518.76-168,266.20-84,075.88

Finding the Fourth Proportional to 112,518.76, 168,266.20 and 84,075.88

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Solution

The fourth proportional to 112,518.76, 168,266.20 and 84,075.88 is: 125,731.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,518.76 : 168,266.20 = 84,075.88 : x
  2. Step 2: Convert to fraction form
    112,518.76/168,266.20 = 84,075.88/x
  3. Step 3: Cross multiply
    112,518.76x = 168,266.20 × 84,075.88
  4. Step 4: Simplify right side
    112,518.76x = 14,147,128,839.26
  5. Step 5: Solve for x
    x = 14,147,128,839.26/112,518.76
  6. Step 6: Final answer
    x = 125,731.29

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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.