Home / 104,459.20-156,688.80-102,385.60

Finding the Fourth Proportional to 104,459.20, 156,688.80 and 102,385.60

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Solution

The fourth proportional to 104,459.20, 156,688.80 and 102,385.60 is: 153,578.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,459.20 : 156,688.80 = 102,385.60 : x
  2. Step 2: Convert to fraction form
    104,459.20/156,688.80 = 102,385.60/x
  3. Step 3: Cross multiply
    104,459.20x = 156,688.80 × 102,385.60
  4. Step 4: Simplify right side
    104,459.20x = 16,042,676,801.28
  5. Step 5: Solve for x
    x = 16,042,676,801.28/104,459.20
  6. Step 6: Final answer
    x = 153,578.40

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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.