Home / 145,544.65-200,851.58-81,012.49

Finding the Fourth Proportional to 145,544.65, 200,851.58 and 81,012.49

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Solution

The fourth proportional to 145,544.65, 200,851.58 and 81,012.49 is: 111,797.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,544.65 : 200,851.58 = 81,012.49 : x
  2. Step 2: Convert to fraction form
    145,544.65/200,851.58 = 81,012.49/x
  3. Step 3: Cross multiply
    145,544.65x = 200,851.58 × 81,012.49
  4. Step 4: Simplify right side
    145,544.65x = 16,271,486,616.23
  5. Step 5: Solve for x
    x = 16,271,486,616.23/145,544.65
  6. Step 6: Final answer
    x = 111,797.22

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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.