Home / 145,515.74-200,808.75-85,122.14

Finding the Fourth Proportional to 145,515.74, 200,808.75 and 85,122.14

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Solution

The fourth proportional to 145,515.74, 200,808.75 and 85,122.14 is: 117,466.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,515.74 : 200,808.75 = 85,122.14 : x
  2. Step 2: Convert to fraction form
    145,515.74/200,808.75 = 85,122.14/x
  3. Step 3: Cross multiply
    145,515.74x = 200,808.75 × 85,122.14
  4. Step 4: Simplify right side
    145,515.74x = 17,093,270,530.73
  5. Step 5: Solve for x
    x = 17,093,270,530.73/145,515.74
  6. Step 6: Final answer
    x = 117,466.82

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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.