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Finding the Fourth Proportional to 97,122.69, 145,683.69 and 43,752.21

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Solution

The fourth proportional to 97,122.69, 145,683.69 and 43,752.21 is: 65,628.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,122.69 : 145,683.69 = 43,752.21 : x
  2. Step 2: Convert to fraction form
    97,122.69/145,683.69 = 43,752.21/x
  3. Step 3: Cross multiply
    97,122.69x = 145,683.69 × 43,752.21
  4. Step 4: Simplify right side
    97,122.69x = 6,373,983,398.45
  5. Step 5: Solve for x
    x = 6,373,983,398.45/97,122.69
  6. Step 6: Final answer
    x = 65,628.16

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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.