Home / 101,479.08-140,038.26-56,158.94

Finding the Fourth Proportional to 101,479.08, 140,038.26 and 56,158.94

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Solution

The fourth proportional to 101,479.08, 140,038.26 and 56,158.94 is: 77,497.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,479.08 : 140,038.26 = 56,158.94 : x
  2. Step 2: Convert to fraction form
    101,479.08/140,038.26 = 56,158.94/x
  3. Step 3: Cross multiply
    101,479.08x = 140,038.26 × 56,158.94
  4. Step 4: Simplify right side
    101,479.08x = 7,864,400,241.04
  5. Step 5: Solve for x
    x = 7,864,400,241.04/101,479.08
  6. Step 6: Final answer
    x = 77,497.75

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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.