Home / 105,366.48-145,391.40-62,916

Finding the Fourth Proportional to 105,366.48, 145,391.40 and 62,916

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Solution

The fourth proportional to 105,366.48, 145,391.40 and 62,916 is: 86,815.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,366.48 : 145,391.40 = 62,916 : x
  2. Step 2: Convert to fraction form
    105,366.48/145,391.40 = 62,916/x
  3. Step 3: Cross multiply
    105,366.48x = 145,391.40 × 62,916
  4. Step 4: Simplify right side
    105,366.48x = 9,147,445,322.40
  5. Step 5: Solve for x
    x = 9,147,445,322.40/105,366.48
  6. Step 6: Final answer
    x = 86,815.52

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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.