Home / 130,170.69-179,728.65-101,522.36

Finding the Fourth Proportional to 130,170.69, 179,728.65 and 101,522.36

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Solution

The fourth proportional to 130,170.69, 179,728.65 and 101,522.36 is: 140,173.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,170.69 : 179,728.65 = 101,522.36 : x
  2. Step 2: Convert to fraction form
    130,170.69/179,728.65 = 101,522.36/x
  3. Step 3: Cross multiply
    130,170.69x = 179,728.65 × 101,522.36
  4. Step 4: Simplify right side
    130,170.69x = 18,246,475,808.97
  5. Step 5: Solve for x
    x = 18,246,475,808.97/130,170.69
  6. Step 6: Final answer
    x = 140,173.46

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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.