Home / 126,347.26-189,457.42-42,077.64

Finding the Fourth Proportional to 126,347.26, 189,457.42 and 42,077.64

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Solution

The fourth proportional to 126,347.26, 189,457.42 and 42,077.64 is: 63,095.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,347.26 : 189,457.42 = 42,077.64 : x
  2. Step 2: Convert to fraction form
    126,347.26/189,457.42 = 42,077.64/x
  3. Step 3: Cross multiply
    126,347.26x = 189,457.42 × 42,077.64
  4. Step 4: Simplify right side
    126,347.26x = 7,971,921,114.09
  5. Step 5: Solve for x
    x = 7,971,921,114.09/126,347.26
  6. Step 6: Final answer
    x = 63,095.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.