Home / 104,455.40-156,683.10-79,572.20

Finding the Fourth Proportional to 104,455.40, 156,683.10 and 79,572.20

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Solution

The fourth proportional to 104,455.40, 156,683.10 and 79,572.20 is: 119,358.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,455.40 : 156,683.10 = 79,572.20 : x
  2. Step 2: Convert to fraction form
    104,455.40/156,683.10 = 79,572.20/x
  3. Step 3: Cross multiply
    104,455.40x = 156,683.10 × 79,572.20
  4. Step 4: Simplify right side
    104,455.40x = 12,467,618,969.82
  5. Step 5: Solve for x
    x = 12,467,618,969.82/104,455.40
  6. Step 6: Final answer
    x = 119,358.30

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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.