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Finding the Fourth Proportional to 97,653.90, 146,794.05 and 90,720.30

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Solution

The fourth proportional to 97,653.90, 146,794.05 and 90,720.30 is: 136,371.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,653.90 : 146,794.05 = 90,720.30 : x
  2. Step 2: Convert to fraction form
    97,653.90/146,794.05 = 90,720.30/x
  3. Step 3: Cross multiply
    97,653.90x = 146,794.05 × 90,720.30
  4. Step 4: Simplify right side
    97,653.90x = 13,317,200,254.22
  5. Step 5: Solve for x
    x = 13,317,200,254.22/97,653.90
  6. Step 6: Final answer
    x = 136,371.41

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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.