Home / 97,122.78-145,643.40-40,988.16

Finding the Fourth Proportional to 97,122.78, 145,643.40 and 40,988.16

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Solution

The fourth proportional to 97,122.78, 145,643.40 and 40,988.16 is: 61,465.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,122.78 : 145,643.40 = 40,988.16 : x
  2. Step 2: Convert to fraction form
    97,122.78/145,643.40 = 40,988.16/x
  3. Step 3: Cross multiply
    97,122.78x = 145,643.40 × 40,988.16
  4. Step 4: Simplify right side
    97,122.78x = 5,969,654,982.14
  5. Step 5: Solve for x
    x = 5,969,654,982.14/97,122.78
  6. Step 6: Final answer
    x = 61,465.03

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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.