Home / 105,837.67-146,078.58-63,420.85

Finding the Fourth Proportional to 105,837.67, 146,078.58 and 63,420.85

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Solution

The fourth proportional to 105,837.67, 146,078.58 and 63,420.85 is: 87,534.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,837.67 : 146,078.58 = 63,420.85 : x
  2. Step 2: Convert to fraction form
    105,837.67/146,078.58 = 63,420.85/x
  3. Step 3: Cross multiply
    105,837.67x = 146,078.58 × 63,420.85
  4. Step 4: Simplify right side
    105,837.67x = 9,264,427,710.39
  5. Step 5: Solve for x
    x = 9,264,427,710.39/105,837.67
  6. Step 6: Final answer
    x = 87,534.31

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1.5x scale

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.