Home / 124,745.57-172,148.59-68,157.35

Finding the Fourth Proportional to 124,745.57, 172,148.59 and 68,157.35

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Solution

The fourth proportional to 124,745.57, 172,148.59 and 68,157.35 is: 94,056.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,745.57 : 172,148.59 = 68,157.35 : x
  2. Step 2: Convert to fraction form
    124,745.57/172,148.59 = 68,157.35/x
  3. Step 3: Cross multiply
    124,745.57x = 172,148.59 × 68,157.35
  4. Step 4: Simplify right side
    124,745.57x = 11,733,191,700.64
  5. Step 5: Solve for x
    x = 11,733,191,700.64/124,745.57
  6. Step 6: Final answer
    x = 94,056.98

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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.