Home / 145,747.41-201,145.77-85,314.39

Finding the Fourth Proportional to 145,747.41, 201,145.77 and 85,314.39

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Solution

The fourth proportional to 145,747.41, 201,145.77 and 85,314.39 is: 117,742.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,747.41 : 201,145.77 = 85,314.39 : x
  2. Step 2: Convert to fraction form
    145,747.41/201,145.77 = 85,314.39/x
  3. Step 3: Cross multiply
    145,747.41x = 201,145.77 × 85,314.39
  4. Step 4: Simplify right side
    145,747.41x = 17,160,628,668.63
  5. Step 5: Solve for x
    x = 17,160,628,668.63/145,747.41
  6. Step 6: Final answer
    x = 117,742.25

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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.