Home / 102,020.27-140,784.60-56,080.07

Finding the Fourth Proportional to 102,020.27, 140,784.60 and 56,080.07

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Solution

The fourth proportional to 102,020.27, 140,784.60 and 56,080.07 is: 77,388.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,020.27 : 140,784.60 = 56,080.07 : x
  2. Step 2: Convert to fraction form
    102,020.27/140,784.60 = 56,080.07/x
  3. Step 3: Cross multiply
    102,020.27x = 140,784.60 × 56,080.07
  4. Step 4: Simplify right side
    102,020.27x = 7,895,209,519.00
  5. Step 5: Solve for x
    x = 7,895,209,519.00/102,020.27
  6. Step 6: Final answer
    x = 77,388.64

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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.