Home / 105,580.89-145,701.66-57,835.95

Finding the Fourth Proportional to 105,580.89, 145,701.66 and 57,835.95

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Solution

The fourth proportional to 105,580.89, 145,701.66 and 57,835.95 is: 79,813.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,580.89 : 145,701.66 = 57,835.95 : x
  2. Step 2: Convert to fraction form
    105,580.89/145,701.66 = 57,835.95/x
  3. Step 3: Cross multiply
    105,580.89x = 145,701.66 × 57,835.95
  4. Step 4: Simplify right side
    105,580.89x = 8,426,793,922.68
  5. Step 5: Solve for x
    x = 8,426,793,922.68/105,580.89
  6. Step 6: Final answer
    x = 79,813.63

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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.