Home / 98,138.06-135,294.44-66,256.46

Finding the Fourth Proportional to 98,138.06, 135,294.44 and 66,256.46

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Solution

The fourth proportional to 98,138.06, 135,294.44 and 66,256.46 is: 91,342.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,138.06 : 135,294.44 = 66,256.46 : x
  2. Step 2: Convert to fraction form
    98,138.06/135,294.44 = 66,256.46/x
  3. Step 3: Cross multiply
    98,138.06x = 135,294.44 × 66,256.46
  4. Step 4: Simplify right side
    98,138.06x = 8,964,130,652.08
  5. Step 5: Solve for x
    x = 8,964,130,652.08/98,138.06
  6. Step 6: Final answer
    x = 91,342.04

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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.