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Finding the Fourth Proportional to 106,440, 146,888.28 and 63,999.24

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Solution

The fourth proportional to 106,440, 146,888.28 and 63,999.24 is: 88,319.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,440 : 146,888.28 = 63,999.24 : x
  2. Step 2: Convert to fraction form
    106,440/146,888.28 = 63,999.24/x
  3. Step 3: Cross multiply
    106,440x = 146,888.28 × 63,999.24
  4. Step 4: Simplify right side
    106,440x = 9,400,738,284.91
  5. Step 5: Solve for x
    x = 9,400,738,284.91/106,440
  6. Step 6: Final answer
    x = 88,319.60

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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.