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Finding the Fourth Proportional to 112,000.80, 167,612.40 and 102,669.60

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Solution

The fourth proportional to 112,000.80, 167,612.40 and 102,669.60 is: 153,647.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,000.80 : 167,612.40 = 102,669.60 : x
  2. Step 2: Convert to fraction form
    112,000.80/167,612.40 = 102,669.60/x
  3. Step 3: Cross multiply
    112,000.80x = 167,612.40 × 102,669.60
  4. Step 4: Simplify right side
    112,000.80x = 17,208,698,063.04
  5. Step 5: Solve for x
    x = 17,208,698,063.04/112,000.80
  6. Step 6: Final answer
    x = 153,647.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.