Home / 124,803.45-172,259.72-71,120.31

Finding the Fourth Proportional to 124,803.45, 172,259.72 and 71,120.31

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Solution

The fourth proportional to 124,803.45, 172,259.72 and 71,120.31 is: 98,163.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,803.45 : 172,259.72 = 71,120.31 : x
  2. Step 2: Convert to fraction form
    124,803.45/172,259.72 = 71,120.31/x
  3. Step 3: Cross multiply
    124,803.45x = 172,259.72 × 71,120.31
  4. Step 4: Simplify right side
    124,803.45x = 12,251,164,331.31
  5. Step 5: Solve for x
    x = 12,251,164,331.31/124,803.45
  6. Step 6: Final answer
    x = 98,163.67

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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.