Home / 141,613.01-195,403.09-81,172.53

Finding the Fourth Proportional to 141,613.01, 195,403.09 and 81,172.53

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Solution

The fourth proportional to 141,613.01, 195,403.09 and 81,172.53 is: 112,004.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,613.01 : 195,403.09 = 81,172.53 : x
  2. Step 2: Convert to fraction form
    141,613.01/195,403.09 = 81,172.53/x
  3. Step 3: Cross multiply
    141,613.01x = 195,403.09 × 81,172.53
  4. Step 4: Simplify right side
    141,613.01x = 15,861,362,779.26
  5. Step 5: Solve for x
    x = 15,861,362,779.26/141,613.01
  6. Step 6: Final answer
    x = 112,004.98

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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.