Home / 104,126.10-143,693.36-56,379.30

Finding the Fourth Proportional to 104,126.10, 143,693.36 and 56,379.30

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Solution

The fourth proportional to 104,126.10, 143,693.36 and 56,379.30 is: 77,803.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,126.10 : 143,693.36 = 56,379.30 : x
  2. Step 2: Convert to fraction form
    104,126.10/143,693.36 = 56,379.30/x
  3. Step 3: Cross multiply
    104,126.10x = 143,693.36 × 56,379.30
  4. Step 4: Simplify right side
    104,126.10x = 8,101,330,051.08
  5. Step 5: Solve for x
    x = 8,101,330,051.08/104,126.10
  6. Step 6: Final answer
    x = 77,803.07

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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.