Home / 102,013.66-140,776.04-56,690.48

Finding the Fourth Proportional to 102,013.66, 140,776.04 and 56,690.48

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Solution

The fourth proportional to 102,013.66, 140,776.04 and 56,690.48 is: 78,231.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,013.66 : 140,776.04 = 56,690.48 : x
  2. Step 2: Convert to fraction form
    102,013.66/140,776.04 = 56,690.48/x
  3. Step 3: Cross multiply
    102,013.66x = 140,776.04 × 56,690.48
  4. Step 4: Simplify right side
    102,013.66x = 7,980,660,576.22
  5. Step 5: Solve for x
    x = 7,980,660,576.22/102,013.66
  6. Step 6: Final answer
    x = 78,231.30

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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.