Home / 130,185.96-179,648.14-72,815.34

Finding the Fourth Proportional to 130,185.96, 179,648.14 and 72,815.34

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Solution

The fourth proportional to 130,185.96, 179,648.14 and 72,815.34 is: 100,480.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,185.96 : 179,648.14 = 72,815.34 : x
  2. Step 2: Convert to fraction form
    130,185.96/179,648.14 = 72,815.34/x
  3. Step 3: Cross multiply
    130,185.96x = 179,648.14 × 72,815.34
  4. Step 4: Simplify right side
    130,185.96x = 13,081,139,496.23
  5. Step 5: Solve for x
    x = 13,081,139,496.23/130,185.96
  6. Step 6: Final answer
    x = 100,480.42

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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.