Home / 189,741.69-261,848.96-103,705.47

Finding the Fourth Proportional to 189,741.69, 261,848.96 and 103,705.47

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Solution

The fourth proportional to 189,741.69, 261,848.96 and 103,705.47 is: 143,116.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,741.69 : 261,848.96 = 103,705.47 : x
  2. Step 2: Convert to fraction form
    189,741.69/261,848.96 = 103,705.47/x
  3. Step 3: Cross multiply
    189,741.69x = 261,848.96 × 103,705.47
  4. Step 4: Simplify right side
    189,741.69x = 27,155,169,465.81
  5. Step 5: Solve for x
    x = 27,155,169,465.81/189,741.69
  6. Step 6: Final answer
    x = 143,116.52

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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.