Home / 145,743.09-201,175.80-85,333.14

Finding the Fourth Proportional to 145,743.09, 201,175.80 and 85,333.14

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Solution

The fourth proportional to 145,743.09, 201,175.80 and 85,333.14 is: 117,789.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,743.09 : 201,175.80 = 85,333.14 : x
  2. Step 2: Convert to fraction form
    145,743.09/201,175.80 = 85,333.14/x
  3. Step 3: Cross multiply
    145,743.09x = 201,175.80 × 85,333.14
  4. Step 4: Simplify right side
    145,743.09x = 17,166,962,706.01
  5. Step 5: Solve for x
    x = 17,166,962,706.01/145,743.09
  6. Step 6: Final answer
    x = 117,789.21

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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.