Home / 104,435.70-144,120.78-56,688.63

Finding the Fourth Proportional to 104,435.70, 144,120.78 and 56,688.63

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Solution

The fourth proportional to 104,435.70, 144,120.78 and 56,688.63 is: 78,230.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,435.70 : 144,120.78 = 56,688.63 : x
  2. Step 2: Convert to fraction form
    104,435.70/144,120.78 = 56,688.63/x
  3. Step 3: Cross multiply
    104,435.70x = 144,120.78 × 56,688.63
  4. Step 4: Simplify right side
    104,435.70x = 8,170,009,572.73
  5. Step 5: Solve for x
    x = 8,170,009,572.73/104,435.70
  6. Step 6: Final answer
    x = 78,230.05

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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.