Home / 109,739.51-151,452.81-61,995.93

Finding the Fourth Proportional to 109,739.51, 151,452.81 and 61,995.93

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Solution

The fourth proportional to 109,739.51, 151,452.81 and 61,995.93 is: 85,561.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,739.51 : 151,452.81 = 61,995.93 : x
  2. Step 2: Convert to fraction form
    109,739.51/151,452.81 = 61,995.93/x
  3. Step 3: Cross multiply
    109,739.51x = 151,452.81 × 61,995.93
  4. Step 4: Simplify right side
    109,739.51x = 9,389,457,239.12
  5. Step 5: Solve for x
    x = 9,389,457,239.12/109,739.51
  6. Step 6: Final answer
    x = 85,561.32

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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.