Home / 165,782.09-228,779.24-90,330.59

Finding the Fourth Proportional to 165,782.09, 228,779.24 and 90,330.59

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Solution

The fourth proportional to 165,782.09, 228,779.24 and 90,330.59 is: 124,656.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,782.09 : 228,779.24 = 90,330.59 : x
  2. Step 2: Convert to fraction form
    165,782.09/228,779.24 = 90,330.59/x
  3. Step 3: Cross multiply
    165,782.09x = 228,779.24 × 90,330.59
  4. Step 4: Simplify right side
    165,782.09x = 20,665,762,133.40
  5. Step 5: Solve for x
    x = 20,665,762,133.40/165,782.09
  6. Step 6: Final answer
    x = 124,656.18

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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.