Home / 124,283.43-171,459.99-86,579.55

Finding the Fourth Proportional to 124,283.43, 171,459.99 and 86,579.55

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Solution

The fourth proportional to 124,283.43, 171,459.99 and 86,579.55 is: 119,444.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,283.43 : 171,459.99 = 86,579.55 : x
  2. Step 2: Convert to fraction form
    124,283.43/171,459.99 = 86,579.55/x
  3. Step 3: Cross multiply
    124,283.43x = 171,459.99 × 86,579.55
  4. Step 4: Simplify right side
    124,283.43x = 14,844,928,777.20
  5. Step 5: Solve for x
    x = 14,844,928,777.20/124,283.43
  6. Step 6: Final answer
    x = 119,444.15

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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.