Home / 102,703.20-141,654.60-64,941

Finding the Fourth Proportional to 102,703.20, 141,654.60 and 64,941

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Solution

The fourth proportional to 102,703.20, 141,654.60 and 64,941 is: 89,570.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,703.20 : 141,654.60 = 64,941 : x
  2. Step 2: Convert to fraction form
    102,703.20/141,654.60 = 64,941/x
  3. Step 3: Cross multiply
    102,703.20x = 141,654.60 × 64,941
  4. Step 4: Simplify right side
    102,703.20x = 9,199,191,378.60
  5. Step 5: Solve for x
    x = 9,199,191,378.60/102,703.20
  6. Step 6: Final answer
    x = 89,570.64

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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.