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Finding the Fourth Proportional to 74,812.40, 112,218.60 and 73,500.20

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Solution

The fourth proportional to 74,812.40, 112,218.60 and 73,500.20 is: 110,250.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,812.40 : 112,218.60 = 73,500.20 : x
  2. Step 2: Convert to fraction form
    74,812.40/112,218.60 = 73,500.20/x
  3. Step 3: Cross multiply
    74,812.40x = 112,218.60 × 73,500.20
  4. Step 4: Simplify right side
    74,812.40x = 8,248,089,543.72
  5. Step 5: Solve for x
    x = 8,248,089,543.72/74,812.40
  6. Step 6: Final answer
    x = 110,250.30

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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.