Home / 120,655.62-180,875.89-45,828.32

Finding the Fourth Proportional to 120,655.62, 180,875.89 and 45,828.32

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Solution

The fourth proportional to 120,655.62, 180,875.89 and 45,828.32 is: 68,701.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,655.62 : 180,875.89 = 45,828.32 : x
  2. Step 2: Convert to fraction form
    120,655.62/180,875.89 = 45,828.32/x
  3. Step 3: Cross multiply
    120,655.62x = 180,875.89 × 45,828.32
  4. Step 4: Simplify right side
    120,655.62x = 8,289,237,033.68
  5. Step 5: Solve for x
    x = 8,289,237,033.68/120,655.62
  6. Step 6: Final answer
    x = 68,701.62

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1.5x scale

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.