Home / 105,888.21-146,128.08-58,141.74

Finding the Fourth Proportional to 105,888.21, 146,128.08 and 58,141.74

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Solution

The fourth proportional to 105,888.21, 146,128.08 and 58,141.74 is: 80,236.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,888.21 : 146,128.08 = 58,141.74 : x
  2. Step 2: Convert to fraction form
    105,888.21/146,128.08 = 58,141.74/x
  3. Step 3: Cross multiply
    105,888.21x = 146,128.08 × 58,141.74
  4. Step 4: Simplify right side
    105,888.21x = 8,496,140,834.06
  5. Step 5: Solve for x
    x = 8,496,140,834.06/105,888.21
  6. Step 6: Final answer
    x = 80,236.89

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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.