Home / 139,567.32-209,619.60-119,621.88

Finding the Fourth Proportional to 139,567.32, 209,619.60 and 119,621.88

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Solution

The fourth proportional to 139,567.32, 209,619.60 and 119,621.88 is: 179,663.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,567.32 : 209,619.60 = 119,621.88 : x
  2. Step 2: Convert to fraction form
    139,567.32/209,619.60 = 119,621.88/x
  3. Step 3: Cross multiply
    139,567.32x = 209,619.60 × 119,621.88
  4. Step 4: Simplify right side
    139,567.32x = 25,075,090,636.85
  5. Step 5: Solve for x
    x = 25,075,090,636.85/139,567.32
  6. Step 6: Final answer
    x = 179,663.05

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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.