Home / 139,412.49-209,001.16-60,467.28

Finding the Fourth Proportional to 139,412.49, 209,001.16 and 60,467.28

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Solution

The fourth proportional to 139,412.49, 209,001.16 and 60,467.28 is: 90,649.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,412.49 : 209,001.16 = 60,467.28 : x
  2. Step 2: Convert to fraction form
    139,412.49/209,001.16 = 60,467.28/x
  3. Step 3: Cross multiply
    139,412.49x = 209,001.16 × 60,467.28
  4. Step 4: Simplify right side
    139,412.49x = 12,637,731,662.04
  5. Step 5: Solve for x
    x = 12,637,731,662.04/139,412.49
  6. Step 6: Final answer
    x = 90,649.92

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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.