Home / 102,014.52-140,771.07-56,689.65

Finding the Fourth Proportional to 102,014.52, 140,771.07 and 56,689.65

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Solution

The fourth proportional to 102,014.52, 140,771.07 and 56,689.65 is: 78,226.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,014.52 : 140,771.07 = 56,689.65 : x
  2. Step 2: Convert to fraction form
    102,014.52/140,771.07 = 56,689.65/x
  3. Step 3: Cross multiply
    102,014.52x = 140,771.07 × 56,689.65
  4. Step 4: Simplify right side
    102,014.52x = 7,980,262,688.43
  5. Step 5: Solve for x
    x = 7,980,262,688.43/102,014.52
  6. Step 6: Final answer
    x = 78,226.73

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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.