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Finding the Fourth Proportional to 98,444.60, 147,666.90 and 84,620.60

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Solution

The fourth proportional to 98,444.60, 147,666.90 and 84,620.60 is: 126,930.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,444.60 : 147,666.90 = 84,620.60 : x
  2. Step 2: Convert to fraction form
    98,444.60/147,666.90 = 84,620.60/x
  3. Step 3: Cross multiply
    98,444.60x = 147,666.90 × 84,620.60
  4. Step 4: Simplify right side
    98,444.60x = 12,495,661,678.14
  5. Step 5: Solve for x
    x = 12,495,661,678.14/98,444.60
  6. Step 6: Final answer
    x = 126,930.90

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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.