Home / 104,928.20-144,802.50-57,181.40

Finding the Fourth Proportional to 104,928.20, 144,802.50 and 57,181.40

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Solution

The fourth proportional to 104,928.20, 144,802.50 and 57,181.40 is: 78,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,928.20 : 144,802.50 = 57,181.40 : x
  2. Step 2: Convert to fraction form
    104,928.20/144,802.50 = 57,181.40/x
  3. Step 3: Cross multiply
    104,928.20x = 144,802.50 × 57,181.40
  4. Step 4: Simplify right side
    104,928.20x = 8,280,009,673.50
  5. Step 5: Solve for x
    x = 8,280,009,673.50/104,928.20
  6. Step 6: Final answer
    x = 78,911.20

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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.