Home / 105,144.20-145,098.23-57,397.53

Finding the Fourth Proportional to 105,144.20, 145,098.23 and 57,397.53

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Solution

The fourth proportional to 105,144.20, 145,098.23 and 57,397.53 is: 79,208.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,144.20 : 145,098.23 = 57,397.53 : x
  2. Step 2: Convert to fraction form
    105,144.20/145,098.23 = 57,397.53/x
  3. Step 3: Cross multiply
    105,144.20x = 145,098.23 × 57,397.53
  4. Step 4: Simplify right side
    105,144.20x = 8,328,280,009.37
  5. Step 5: Solve for x
    x = 8,328,280,009.37/105,144.20
  6. Step 6: Final answer
    x = 79,208.17

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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.