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Finding the Fourth Proportional to 100,403.60, 150,605.40 and 98,848.40

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Solution

The fourth proportional to 100,403.60, 150,605.40 and 98,848.40 is: 148,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,403.60 : 150,605.40 = 98,848.40 : x
  2. Step 2: Convert to fraction form
    100,403.60/150,605.40 = 98,848.40/x
  3. Step 3: Cross multiply
    100,403.60x = 150,605.40 × 98,848.40
  4. Step 4: Simplify right side
    100,403.60x = 14,887,102,821.36
  5. Step 5: Solve for x
    x = 14,887,102,821.36/100,403.60
  6. Step 6: Final answer
    x = 148,272.60

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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.