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Finding the Fourth Proportional to 78,794.96, 117,577.87 and 70,303.08

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Solution

The fourth proportional to 78,794.96, 117,577.87 and 70,303.08 is: 104,906.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,794.96 : 117,577.87 = 70,303.08 : x
  2. Step 2: Convert to fraction form
    78,794.96/117,577.87 = 70,303.08/x
  3. Step 3: Cross multiply
    78,794.96x = 117,577.87 × 70,303.08
  4. Step 4: Simplify right side
    78,794.96x = 8,266,085,740.42
  5. Step 5: Solve for x
    x = 8,266,085,740.42/78,794.96
  6. Step 6: Final answer
    x = 104,906.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.