Home / 101,999.91-140,719.53-58,971.45

Finding the Fourth Proportional to 101,999.91, 140,719.53 and 58,971.45

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Solution

The fourth proportional to 101,999.91, 140,719.53 and 58,971.45 is: 81,357.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,999.91 : 140,719.53 = 58,971.45 : x
  2. Step 2: Convert to fraction form
    101,999.91/140,719.53 = 58,971.45/x
  3. Step 3: Cross multiply
    101,999.91x = 140,719.53 × 58,971.45
  4. Step 4: Simplify right side
    101,999.91x = 8,298,434,727.42
  5. Step 5: Solve for x
    x = 8,298,434,727.42/101,999.91
  6. Step 6: Final answer
    x = 81,357.27

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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.