Home / 106,015.96-146,147.88-74,085.76

Finding the Fourth Proportional to 106,015.96, 146,147.88 and 74,085.76

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Solution

The fourth proportional to 106,015.96, 146,147.88 and 74,085.76 is: 102,130.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,015.96 : 146,147.88 = 74,085.76 : x
  2. Step 2: Convert to fraction form
    106,015.96/146,147.88 = 74,085.76/x
  3. Step 3: Cross multiply
    106,015.96x = 146,147.88 × 74,085.76
  4. Step 4: Simplify right side
    106,015.96x = 10,827,476,762.19
  5. Step 5: Solve for x
    x = 10,827,476,762.19/106,015.96
  6. Step 6: Final answer
    x = 102,130.63

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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.