Home / 98,104.32-135,425.07-66,316.28

Finding the Fourth Proportional to 98,104.32, 135,425.07 and 66,316.28

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Solution

The fourth proportional to 98,104.32, 135,425.07 and 66,316.28 is: 91,544.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,104.32 : 135,425.07 = 66,316.28 : x
  2. Step 2: Convert to fraction form
    98,104.32/135,425.07 = 66,316.28/x
  3. Step 3: Cross multiply
    98,104.32x = 135,425.07 × 66,316.28
  4. Step 4: Simplify right side
    98,104.32x = 8,980,886,184.01
  5. Step 5: Solve for x
    x = 8,980,886,184.01/98,104.32
  6. Step 6: Final answer
    x = 91,544.25

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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.