Home / 120,176.34-180,250.74-31,438.41

Finding the Fourth Proportional to 120,176.34, 180,250.74 and 31,438.41

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Solution

The fourth proportional to 120,176.34, 180,250.74 and 31,438.41 is: 47,154.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,176.34 : 180,250.74 = 31,438.41 : x
  2. Step 2: Convert to fraction form
    120,176.34/180,250.74 = 31,438.41/x
  3. Step 3: Cross multiply
    120,176.34x = 180,250.74 × 31,438.41
  4. Step 4: Simplify right side
    120,176.34x = 5,666,796,666.92
  5. Step 5: Solve for x
    x = 5,666,796,666.92/120,176.34
  6. Step 6: Final answer
    x = 47,154.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.