Home / 105,052.95-144,972.54-57,305.88

Finding the Fourth Proportional to 105,052.95, 144,972.54 and 57,305.88

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Solution

The fourth proportional to 105,052.95, 144,972.54 and 57,305.88 is: 79,081.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,052.95 : 144,972.54 = 57,305.88 : x
  2. Step 2: Convert to fraction form
    105,052.95/144,972.54 = 57,305.88/x
  3. Step 3: Cross multiply
    105,052.95x = 144,972.54 × 57,305.88
  4. Step 4: Simplify right side
    105,052.95x = 8,307,778,980.54
  5. Step 5: Solve for x
    x = 8,307,778,980.54/105,052.95
  6. Step 6: Final answer
    x = 79,081.82

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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.