Home / 105,329.63-145,336.20-62,310.93

Finding the Fourth Proportional to 105,329.63, 145,336.20 and 62,310.93

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Solution

The fourth proportional to 105,329.63, 145,336.20 and 62,310.93 is: 85,978.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,329.63 : 145,336.20 = 62,310.93 : x
  2. Step 2: Convert to fraction form
    105,329.63/145,336.20 = 62,310.93/x
  3. Step 3: Cross multiply
    105,329.63x = 145,336.20 × 62,310.93
  4. Step 4: Simplify right side
    105,329.63x = 9,056,033,784.67
  5. Step 5: Solve for x
    x = 9,056,033,784.67/105,329.63
  6. Step 6: Final answer
    x = 85,978.03

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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.