Home / 130,146.51-179,621.45-82,404.30

Finding the Fourth Proportional to 130,146.51, 179,621.45 and 82,404.30

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Solution

The fourth proportional to 130,146.51, 179,621.45 and 82,404.30 is: 113,730.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,146.51 : 179,621.45 = 82,404.30 : x
  2. Step 2: Convert to fraction form
    130,146.51/179,621.45 = 82,404.30/x
  3. Step 3: Cross multiply
    130,146.51x = 179,621.45 × 82,404.30
  4. Step 4: Simplify right side
    130,146.51x = 14,801,579,852.24
  5. Step 5: Solve for x
    x = 14,801,579,852.24/130,146.51
  6. Step 6: Final answer
    x = 113,730.13

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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.