Home / 104,036.10-143,569.87-56,289.53

Finding the Fourth Proportional to 104,036.10, 143,569.87 and 56,289.53

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Solution

The fourth proportional to 104,036.10, 143,569.87 and 56,289.53 is: 77,679.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,036.10 : 143,569.87 = 56,289.53 : x
  2. Step 2: Convert to fraction form
    104,036.10/143,569.87 = 56,289.53/x
  3. Step 3: Cross multiply
    104,036.10x = 143,569.87 × 56,289.53
  4. Step 4: Simplify right side
    104,036.10x = 8,081,480,722.66
  5. Step 5: Solve for x
    x = 8,081,480,722.66/104,036.10
  6. Step 6: Final answer
    x = 77,679.58

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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.