Home / 124,746.80-172,145.22-68,158.40

Finding the Fourth Proportional to 124,746.80, 172,145.22 and 68,158.40

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Solution

The fourth proportional to 124,746.80, 172,145.22 and 68,158.40 is: 94,055.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,746.80 : 172,145.22 = 68,158.40 : x
  2. Step 2: Convert to fraction form
    124,746.80/172,145.22 = 68,158.40/x
  3. Step 3: Cross multiply
    124,746.80x = 172,145.22 × 68,158.40
  4. Step 4: Simplify right side
    124,746.80x = 11,733,142,762.85
  5. Step 5: Solve for x
    x = 11,733,142,762.85/124,746.80
  6. Step 6: Final answer
    x = 94,055.66

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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.