Home / 98,125.20-147,187.80-90,908.10

Finding the Fourth Proportional to 98,125.20, 147,187.80 and 90,908.10

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Solution

The fourth proportional to 98,125.20, 147,187.80 and 90,908.10 is: 136,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,125.20 : 147,187.80 = 90,908.10 : x
  2. Step 2: Convert to fraction form
    98,125.20/147,187.80 = 90,908.10/x
  3. Step 3: Cross multiply
    98,125.20x = 147,187.80 × 90,908.10
  4. Step 4: Simplify right side
    98,125.20x = 13,380,563,241.18
  5. Step 5: Solve for x
    x = 13,380,563,241.18/98,125.20
  6. Step 6: Final answer
    x = 136,362.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.