Home / 103,587.73-142,952.54-61,146.26

Finding the Fourth Proportional to 103,587.73, 142,952.54 and 61,146.26

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Solution

The fourth proportional to 103,587.73, 142,952.54 and 61,146.26 is: 84,382.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,587.73 : 142,952.54 = 61,146.26 : x
  2. Step 2: Convert to fraction form
    103,587.73/142,952.54 = 61,146.26/x
  3. Step 3: Cross multiply
    103,587.73x = 142,952.54 × 61,146.26
  4. Step 4: Simplify right side
    103,587.73x = 8,741,012,158.01
  5. Step 5: Solve for x
    x = 8,741,012,158.01/103,587.73
  6. Step 6: Final answer
    x = 84,382.70

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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.