Home / 145,500.75-200,802.60-81,843.26

Finding the Fourth Proportional to 145,500.75, 200,802.60 and 81,843.26

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Solution

The fourth proportional to 145,500.75, 200,802.60 and 81,843.26 is: 112,950.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,500.75 : 200,802.60 = 81,843.26 : x
  2. Step 2: Convert to fraction form
    145,500.75/200,802.60 = 81,843.26/x
  3. Step 3: Cross multiply
    145,500.75x = 200,802.60 × 81,843.26
  4. Step 4: Simplify right side
    145,500.75x = 16,434,338,396.46
  5. Step 5: Solve for x
    x = 16,434,338,396.46/145,500.75
  6. Step 6: Final answer
    x = 112,950.20

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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.