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Finding the Fourth Proportional to 145,389.60, 218,084.40 and 100,922.40

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Solution

The fourth proportional to 145,389.60, 218,084.40 and 100,922.40 is: 151,383.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,389.60 : 218,084.40 = 100,922.40 : x
  2. Step 2: Convert to fraction form
    145,389.60/218,084.40 = 100,922.40/x
  3. Step 3: Cross multiply
    145,389.60x = 218,084.40 × 100,922.40
  4. Step 4: Simplify right side
    145,389.60x = 22,009,601,050.56
  5. Step 5: Solve for x
    x = 22,009,601,050.56/145,389.60
  6. Step 6: Final answer
    x = 151,383.60

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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.