Home / 124,150.49-171,315.81-69,690.19

Finding the Fourth Proportional to 124,150.49, 171,315.81 and 69,690.19

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Solution

The fourth proportional to 124,150.49, 171,315.81 and 69,690.19 is: 96,165.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,150.49 : 171,315.81 = 69,690.19 : x
  2. Step 2: Convert to fraction form
    124,150.49/171,315.81 = 69,690.19/x
  3. Step 3: Cross multiply
    124,150.49x = 171,315.81 × 69,690.19
  4. Step 4: Simplify right side
    124,150.49x = 11,939,031,241.83
  5. Step 5: Solve for x
    x = 11,939,031,241.83/124,150.49
  6. Step 6: Final answer
    x = 96,165.80

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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.