Home / 105,536.22-145,638.60-57,789.63

Finding the Fourth Proportional to 105,536.22, 145,638.60 and 57,789.63

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Solution

The fourth proportional to 105,536.22, 145,638.60 and 57,789.63 is: 79,748.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,536.22 : 145,638.60 = 57,789.63 : x
  2. Step 2: Convert to fraction form
    105,536.22/145,638.60 = 57,789.63/x
  3. Step 3: Cross multiply
    105,536.22x = 145,638.60 × 57,789.63
  4. Step 4: Simplify right side
    105,536.22x = 8,416,400,807.72
  5. Step 5: Solve for x
    x = 8,416,400,807.72/105,536.22
  6. Step 6: Final answer
    x = 79,748.93

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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.