Home / 104,006.40-156,009.60-79,123.20

Finding the Fourth Proportional to 104,006.40, 156,009.60 and 79,123.20

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Solution

The fourth proportional to 104,006.40, 156,009.60 and 79,123.20 is: 118,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,006.40 : 156,009.60 = 79,123.20 : x
  2. Step 2: Convert to fraction form
    104,006.40/156,009.60 = 79,123.20/x
  3. Step 3: Cross multiply
    104,006.40x = 156,009.60 × 79,123.20
  4. Step 4: Simplify right side
    104,006.40x = 12,343,978,782.72
  5. Step 5: Solve for x
    x = 12,343,978,782.72/104,006.40
  6. Step 6: Final answer
    x = 118,684.80

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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.