Home / 105,652.38-145,807.14-57,905.69

Finding the Fourth Proportional to 105,652.38, 145,807.14 and 57,905.69

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Solution

The fourth proportional to 105,652.38, 145,807.14 and 57,905.69 is: 79,913.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,652.38 : 145,807.14 = 57,905.69 : x
  2. Step 2: Convert to fraction form
    105,652.38/145,807.14 = 57,905.69/x
  3. Step 3: Cross multiply
    105,652.38x = 145,807.14 × 57,905.69
  4. Step 4: Simplify right side
    105,652.38x = 8,443,062,211.02
  5. Step 5: Solve for x
    x = 8,443,062,211.02/105,652.38
  6. Step 6: Final answer
    x = 79,913.61

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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.