Home / 112,579.56-168,681.89-79,229.63

Finding the Fourth Proportional to 112,579.56, 168,681.89 and 79,229.63

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Solution

The fourth proportional to 112,579.56, 168,681.89 and 79,229.63 is: 118,712.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,579.56 : 168,681.89 = 79,229.63 : x
  2. Step 2: Convert to fraction form
    112,579.56/168,681.89 = 79,229.63/x
  3. Step 3: Cross multiply
    112,579.56x = 168,681.89 × 79,229.63
  4. Step 4: Simplify right side
    112,579.56x = 13,364,604,352.18
  5. Step 5: Solve for x
    x = 13,364,604,352.18/112,579.56
  6. Step 6: Final answer
    x = 118,712.53

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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.