Home / 130,447.08-180,044.28-79,476.48

Finding the Fourth Proportional to 130,447.08, 180,044.28 and 79,476.48

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Solution

The fourth proportional to 130,447.08, 180,044.28 and 79,476.48 is: 109,694.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,447.08 : 180,044.28 = 79,476.48 : x
  2. Step 2: Convert to fraction form
    130,447.08/180,044.28 = 79,476.48/x
  3. Step 3: Cross multiply
    130,447.08x = 180,044.28 × 79,476.48
  4. Step 4: Simplify right side
    130,447.08x = 14,309,285,618.53
  5. Step 5: Solve for x
    x = 14,309,285,618.53/130,447.08
  6. Step 6: Final answer
    x = 109,694.18

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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.