Home / 103,014.36-142,148.07-57,686.04

Finding the Fourth Proportional to 103,014.36, 142,148.07 and 57,686.04

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Solution

The fourth proportional to 103,014.36, 142,148.07 and 57,686.04 is: 79,600.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,014.36 : 142,148.07 = 57,686.04 : x
  2. Step 2: Convert to fraction form
    103,014.36/142,148.07 = 57,686.04/x
  3. Step 3: Cross multiply
    103,014.36x = 142,148.07 × 57,686.04
  4. Step 4: Simplify right side
    103,014.36x = 8,199,959,251.94
  5. Step 5: Solve for x
    x = 8,199,959,251.94/103,014.36
  6. Step 6: Final answer
    x = 79,600.16

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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.