Home / 145,618.17-201,015.08-97,899.20

Finding the Fourth Proportional to 145,618.17, 201,015.08 and 97,899.20

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Solution

The fourth proportional to 145,618.17, 201,015.08 and 97,899.20 is: 135,142.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,618.17 : 201,015.08 = 97,899.20 : x
  2. Step 2: Convert to fraction form
    145,618.17/201,015.08 = 97,899.20/x
  3. Step 3: Cross multiply
    145,618.17x = 201,015.08 × 97,899.20
  4. Step 4: Simplify right side
    145,618.17x = 19,679,215,519.94
  5. Step 5: Solve for x
    x = 19,679,215,519.94/145,618.17
  6. Step 6: Final answer
    x = 135,142.58

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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.