Home / 104,319.17-143,959.19-56,571.95

Finding the Fourth Proportional to 104,319.17, 143,959.19 and 56,571.95

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Solution

The fourth proportional to 104,319.17, 143,959.19 and 56,571.95 is: 78,068.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,319.17 : 143,959.19 = 56,571.95 : x
  2. Step 2: Convert to fraction form
    104,319.17/143,959.19 = 56,571.95/x
  3. Step 3: Cross multiply
    104,319.17x = 143,959.19 × 56,571.95
  4. Step 4: Simplify right side
    104,319.17x = 8,144,051,096.06
  5. Step 5: Solve for x
    x = 8,144,051,096.06/104,319.17
  6. Step 6: Final answer
    x = 78,068.60

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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.