Home / 104,276.15-143,901.83-56,530.25

Finding the Fourth Proportional to 104,276.15, 143,901.83 and 56,530.25

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Solution

The fourth proportional to 104,276.15, 143,901.83 and 56,530.25 is: 78,012.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,276.15 : 143,901.83 = 56,530.25 : x
  2. Step 2: Convert to fraction form
    104,276.15/143,901.83 = 56,530.25/x
  3. Step 3: Cross multiply
    104,276.15x = 143,901.83 × 56,530.25
  4. Step 4: Simplify right side
    104,276.15x = 8,134,806,425.36
  5. Step 5: Solve for x
    x = 8,134,806,425.36/104,276.15
  6. Step 6: Final answer
    x = 78,012.15

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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.