Home / 122,000.07-168,321.72-68,276.55

Finding the Fourth Proportional to 122,000.07, 168,321.72 and 68,276.55

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Solution

The fourth proportional to 122,000.07, 168,321.72 and 68,276.55 is: 94,200.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,000.07 : 168,321.72 = 68,276.55 : x
  2. Step 2: Convert to fraction form
    122,000.07/168,321.72 = 68,276.55/x
  3. Step 3: Cross multiply
    122,000.07x = 168,321.72 × 68,276.55
  4. Step 4: Simplify right side
    122,000.07x = 11,492,426,331.67
  5. Step 5: Solve for x
    x = 11,492,426,331.67/122,000.07
  6. Step 6: Final answer
    x = 94,200.16

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1.5x scale

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.