Home / 126,507.13-189,596.05-51,539.47

Finding the Fourth Proportional to 126,507.13, 189,596.05 and 51,539.47

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Solution

The fourth proportional to 126,507.13, 189,596.05 and 51,539.47 is: 77,242.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,507.13 : 189,596.05 = 51,539.47 : x
  2. Step 2: Convert to fraction form
    126,507.13/189,596.05 = 51,539.47/x
  3. Step 3: Cross multiply
    126,507.13x = 189,596.05 × 51,539.47
  4. Step 4: Simplify right side
    126,507.13x = 9,771,679,931.09
  5. Step 5: Solve for x
    x = 9,771,679,931.09/126,507.13
  6. Step 6: Final answer
    x = 77,242.13

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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.