Home / 106,842.24-147,392.64-69,128.64

Finding the Fourth Proportional to 106,842.24, 147,392.64 and 69,128.64

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Solution

The fourth proportional to 106,842.24, 147,392.64 and 69,128.64 is: 95,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,842.24 : 147,392.64 = 69,128.64 : x
  2. Step 2: Convert to fraction form
    106,842.24/147,392.64 = 69,128.64/x
  3. Step 3: Cross multiply
    106,842.24x = 147,392.64 × 69,128.64
  4. Step 4: Simplify right side
    106,842.24x = 10,189,052,749.21
  5. Step 5: Solve for x
    x = 10,189,052,749.21/106,842.24
  6. Step 6: Final answer
    x = 95,365.40

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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.