Home / 130,221.39-179,714.43-72,866.16

Finding the Fourth Proportional to 130,221.39, 179,714.43 and 72,866.16

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Solution

The fourth proportional to 130,221.39, 179,714.43 and 72,866.16 is: 100,560.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,221.39 : 179,714.43 = 72,866.16 : x
  2. Step 2: Convert to fraction form
    130,221.39/179,714.43 = 72,866.16/x
  3. Step 3: Cross multiply
    130,221.39x = 179,714.43 × 72,866.16
  4. Step 4: Simplify right side
    130,221.39x = 13,095,100,410.69
  5. Step 5: Solve for x
    x = 13,095,100,410.69/130,221.39
  6. Step 6: Final answer
    x = 100,560.29

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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.