Home / 130,071.95-179,528.24-79,073.88

Finding the Fourth Proportional to 130,071.95, 179,528.24 and 79,073.88

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Solution

The fourth proportional to 130,071.95, 179,528.24 and 79,073.88 is: 109,139.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,071.95 : 179,528.24 = 79,073.88 : x
  2. Step 2: Convert to fraction form
    130,071.95/179,528.24 = 79,073.88/x
  3. Step 3: Cross multiply
    130,071.95x = 179,528.24 × 79,073.88
  4. Step 4: Simplify right side
    130,071.95x = 14,195,994,506.37
  5. Step 5: Solve for x
    x = 14,195,994,506.37/130,071.95
  6. Step 6: Final answer
    x = 109,139.55

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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.