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Finding the Fourth Proportional to 98,014.84, 135,210.63 and 64,043.20

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Solution

The fourth proportional to 98,014.84, 135,210.63 and 64,043.20 is: 88,347.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,014.84 : 135,210.63 = 64,043.20 : x
  2. Step 2: Convert to fraction form
    98,014.84/135,210.63 = 64,043.20/x
  3. Step 3: Cross multiply
    98,014.84x = 135,210.63 × 64,043.20
  4. Step 4: Simplify right side
    98,014.84x = 8,659,321,419.22
  5. Step 5: Solve for x
    x = 8,659,321,419.22/98,014.84
  6. Step 6: Final answer
    x = 88,347.04

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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.