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Finding the Fourth Proportional to 98,600.68, 147,901.02 and 90,047.08

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Solution

The fourth proportional to 98,600.68, 147,901.02 and 90,047.08 is: 135,070.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,600.68 : 147,901.02 = 90,047.08 : x
  2. Step 2: Convert to fraction form
    98,600.68/147,901.02 = 90,047.08/x
  3. Step 3: Cross multiply
    98,600.68x = 147,901.02 × 90,047.08
  4. Step 4: Simplify right side
    98,600.68x = 13,318,054,980.02
  5. Step 5: Solve for x
    x = 13,318,054,980.02/98,600.68
  6. Step 6: Final answer
    x = 135,070.62

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Similar ratio
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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.