Home / 103,848.57-143,318.59-57,911.32

Finding the Fourth Proportional to 103,848.57, 143,318.59 and 57,911.32

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Solution

The fourth proportional to 103,848.57, 143,318.59 and 57,911.32 is: 79,921.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,848.57 : 143,318.59 = 57,911.32 : x
  2. Step 2: Convert to fraction form
    103,848.57/143,318.59 = 57,911.32/x
  3. Step 3: Cross multiply
    103,848.57x = 143,318.59 × 57,911.32
  4. Step 4: Simplify right side
    103,848.57x = 8,299,768,761.81
  5. Step 5: Solve for x
    x = 8,299,768,761.81/103,848.57
  6. Step 6: Final answer
    x = 79,921.84

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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.