Home / 130,084.58-179,572.06-79,113.68

Finding the Fourth Proportional to 130,084.58, 179,572.06 and 79,113.68

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Solution

The fourth proportional to 130,084.58, 179,572.06 and 79,113.68 is: 109,210.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,084.58 : 179,572.06 = 79,113.68 : x
  2. Step 2: Convert to fraction form
    130,084.58/179,572.06 = 79,113.68/x
  3. Step 3: Cross multiply
    130,084.58x = 179,572.06 × 79,113.68
  4. Step 4: Simplify right side
    130,084.58x = 14,206,606,762.20
  5. Step 5: Solve for x
    x = 14,206,606,762.20/130,084.58
  6. Step 6: Final answer
    x = 109,210.54

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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.