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Finding the Fourth Proportional to 73,106.30, 109,659.45 and 65,330.30

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Solution

The fourth proportional to 73,106.30, 109,659.45 and 65,330.30 is: 97,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,106.30 : 109,659.45 = 65,330.30 : x
  2. Step 2: Convert to fraction form
    73,106.30/109,659.45 = 65,330.30/x
  3. Step 3: Cross multiply
    73,106.30x = 109,659.45 × 65,330.30
  4. Step 4: Simplify right side
    73,106.30x = 7,164,084,766.34
  5. Step 5: Solve for x
    x = 7,164,084,766.34/73,106.30
  6. Step 6: Final answer
    x = 97,995.45

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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.