Home / 165,857.63-228,885.35-90,406.13

Finding the Fourth Proportional to 165,857.63, 228,885.35 and 90,406.13

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Solution

The fourth proportional to 165,857.63, 228,885.35 and 90,406.13 is: 124,761.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,857.63 : 228,885.35 = 90,406.13 : x
  2. Step 2: Convert to fraction form
    165,857.63/228,885.35 = 90,406.13/x
  3. Step 3: Cross multiply
    165,857.63x = 228,885.35 × 90,406.13
  4. Step 4: Simplify right side
    165,857.63x = 20,692,637,110.74
  5. Step 5: Solve for x
    x = 20,692,637,110.74/165,857.63
  6. Step 6: Final answer
    x = 124,761.45

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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.