Home / 106,520.51-147,051.56-66,247.25

Finding the Fourth Proportional to 106,520.51, 147,051.56 and 66,247.25

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Solution

The fourth proportional to 106,520.51, 147,051.56 and 66,247.25 is: 91,454.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,520.51 : 147,051.56 = 66,247.25 : x
  2. Step 2: Convert to fraction form
    106,520.51/147,051.56 = 66,247.25/x
  3. Step 3: Cross multiply
    106,520.51x = 147,051.56 × 66,247.25
  4. Step 4: Simplify right side
    106,520.51x = 9,741,760,391.72
  5. Step 5: Solve for x
    x = 9,741,760,391.72/106,520.51
  6. Step 6: Final answer
    x = 91,454.32

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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.