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Finding the Fourth Proportional to 100,946.80, 151,420.20 and 93,343.60

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Solution

The fourth proportional to 100,946.80, 151,420.20 and 93,343.60 is: 140,015.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,946.80 : 151,420.20 = 93,343.60 : x
  2. Step 2: Convert to fraction form
    100,946.80/151,420.20 = 93,343.60/x
  3. Step 3: Cross multiply
    100,946.80x = 151,420.20 × 93,343.60
  4. Step 4: Simplify right side
    100,946.80x = 14,134,106,580.72
  5. Step 5: Solve for x
    x = 14,134,106,580.72/100,946.80
  6. Step 6: Final answer
    x = 140,015.40

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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.