Home / 145,972.15-201,443.03-85,578.55

Finding the Fourth Proportional to 145,972.15, 201,443.03 and 85,578.55

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Solution

The fourth proportional to 145,972.15, 201,443.03 and 85,578.55 is: 118,099.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,972.15 : 201,443.03 = 85,578.55 : x
  2. Step 2: Convert to fraction form
    145,972.15/201,443.03 = 85,578.55/x
  3. Step 3: Cross multiply
    145,972.15x = 201,443.03 × 85,578.55
  4. Step 4: Simplify right side
    145,972.15x = 17,239,202,415.01
  5. Step 5: Solve for x
    x = 17,239,202,415.01/145,972.15
  6. Step 6: Final answer
    x = 118,099.26

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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.