Home / 105,101.60-145,040.73-57,355.95

Finding the Fourth Proportional to 105,101.60, 145,040.73 and 57,355.95

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Solution

The fourth proportional to 105,101.60, 145,040.73 and 57,355.95 is: 79,151.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,101.60 : 145,040.73 = 57,355.95 : x
  2. Step 2: Convert to fraction form
    105,101.60/145,040.73 = 57,355.95/x
  3. Step 3: Cross multiply
    105,101.60x = 145,040.73 × 57,355.95
  4. Step 4: Simplify right side
    105,101.60x = 8,318,948,370.81
  5. Step 5: Solve for x
    x = 8,318,948,370.81/105,101.60
  6. Step 6: Final answer
    x = 79,151.49

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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.