Home / 106,346.08-146,712.36-78,002.56

Finding the Fourth Proportional to 106,346.08, 146,712.36 and 78,002.56

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Solution

The fourth proportional to 106,346.08, 146,712.36 and 78,002.56 is: 107,610.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,346.08 : 146,712.36 = 78,002.56 : x
  2. Step 2: Convert to fraction form
    106,346.08/146,712.36 = 78,002.56/x
  3. Step 3: Cross multiply
    106,346.08x = 146,712.36 × 78,002.56
  4. Step 4: Simplify right side
    106,346.08x = 11,443,939,663.64
  5. Step 5: Solve for x
    x = 11,443,939,663.64/106,346.08
  6. Step 6: Final answer
    x = 107,610.36

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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.