Home / 145,618.35-201,015.30-97,899.36

Finding the Fourth Proportional to 145,618.35, 201,015.30 and 97,899.36

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Solution

The fourth proportional to 145,618.35, 201,015.30 and 97,899.36 is: 135,142.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,618.35 : 201,015.30 = 97,899.36 : x
  2. Step 2: Convert to fraction form
    145,618.35/201,015.30 = 97,899.36/x
  3. Step 3: Cross multiply
    145,618.35x = 201,015.30 × 97,899.36
  4. Step 4: Simplify right side
    145,618.35x = 19,679,269,220.21
  5. Step 5: Solve for x
    x = 19,679,269,220.21/145,618.35
  6. Step 6: Final answer
    x = 135,142.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.