Home / 103,283.71-142,536.95-57,959.35

Finding the Fourth Proportional to 103,283.71, 142,536.95 and 57,959.35

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Solution

The fourth proportional to 103,283.71, 142,536.95 and 57,959.35 is: 79,986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,283.71 : 142,536.95 = 57,959.35 : x
  2. Step 2: Convert to fraction form
    103,283.71/142,536.95 = 57,959.35/x
  3. Step 3: Cross multiply
    103,283.71x = 142,536.95 × 57,959.35
  4. Step 4: Simplify right side
    103,283.71x = 8,261,348,761.54
  5. Step 5: Solve for x
    x = 8,261,348,761.54/103,283.71
  6. Step 6: Final answer
    x = 79,986.95

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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.