Home / 102,214.06-140,975.36-66,415.72

Finding the Fourth Proportional to 102,214.06, 140,975.36 and 66,415.72

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Solution

The fourth proportional to 102,214.06, 140,975.36 and 66,415.72 is: 91,601.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,214.06 : 140,975.36 = 66,415.72 : x
  2. Step 2: Convert to fraction form
    102,214.06/140,975.36 = 66,415.72/x
  3. Step 3: Cross multiply
    102,214.06x = 140,975.36 × 66,415.72
  4. Step 4: Simplify right side
    102,214.06x = 9,362,980,036.66
  5. Step 5: Solve for x
    x = 9,362,980,036.66/102,214.06
  6. Step 6: Final answer
    x = 91,601.68

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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.