Home / 124,216.08-171,618.60-86,658

Finding the Fourth Proportional to 124,216.08, 171,618.60 and 86,658

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Solution

The fourth proportional to 124,216.08, 171,618.60 and 86,658 is: 119,727.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,216.08 : 171,618.60 = 86,658 : x
  2. Step 2: Convert to fraction form
    124,216.08/171,618.60 = 86,658/x
  3. Step 3: Cross multiply
    124,216.08x = 171,618.60 × 86,658
  4. Step 4: Simplify right side
    124,216.08x = 14,872,124,638.80
  5. Step 5: Solve for x
    x = 14,872,124,638.80/124,216.08
  6. Step 6: Final answer
    x = 119,727.85

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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.