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Finding the Fourth Proportional to 144,953.40, 200,133.92 and 90,588.60

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Solution

The fourth proportional to 144,953.40, 200,133.92 and 90,588.60 is: 125,073.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,953.40 : 200,133.92 = 90,588.60 : x
  2. Step 2: Convert to fraction form
    144,953.40/200,133.92 = 90,588.60/x
  3. Step 3: Cross multiply
    144,953.40x = 200,133.92 × 90,588.60
  4. Step 4: Simplify right side
    144,953.40x = 18,129,851,625.31
  5. Step 5: Solve for x
    x = 18,129,851,625.31/144,953.40
  6. Step 6: Final answer
    x = 125,073.66

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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.