Home / 165,498.72-228,389.40-90,047.76

Finding the Fourth Proportional to 165,498.72, 228,389.40 and 90,047.76

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Solution

The fourth proportional to 165,498.72, 228,389.40 and 90,047.76 is: 124,266.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,498.72 : 228,389.40 = 90,047.76 : x
  2. Step 2: Convert to fraction form
    165,498.72/228,389.40 = 90,047.76/x
  3. Step 3: Cross multiply
    165,498.72x = 228,389.40 × 90,047.76
  4. Step 4: Simplify right side
    165,498.72x = 20,565,953,877.74
  5. Step 5: Solve for x
    x = 20,565,953,877.74/165,498.72
  6. Step 6: Final answer
    x = 124,266.54

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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.