Home / 145,717.94-201,085.34-81,185.66

Finding the Fourth Proportional to 145,717.94, 201,085.34 and 81,185.66

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Solution

The fourth proportional to 145,717.94, 201,085.34 and 81,185.66 is: 112,033.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,717.94 : 201,085.34 = 81,185.66 : x
  2. Step 2: Convert to fraction form
    145,717.94/201,085.34 = 81,185.66/x
  3. Step 3: Cross multiply
    145,717.94x = 201,085.34 × 81,185.66
  4. Step 4: Simplify right side
    145,717.94x = 16,325,246,044.22
  5. Step 5: Solve for x
    x = 16,325,246,044.22/145,717.94
  6. Step 6: Final answer
    x = 112,033.19

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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.