Home / 104,187.46-143,779.36-56,440.78

Finding the Fourth Proportional to 104,187.46, 143,779.36 and 56,440.78

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Solution

The fourth proportional to 104,187.46, 143,779.36 and 56,440.78 is: 77,888.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,187.46 : 143,779.36 = 56,440.78 : x
  2. Step 2: Convert to fraction form
    104,187.46/143,779.36 = 56,440.78/x
  3. Step 3: Cross multiply
    104,187.46x = 143,779.36 × 56,440.78
  4. Step 4: Simplify right side
    104,187.46x = 8,115,019,226.30
  5. Step 5: Solve for x
    x = 8,115,019,226.30/104,187.46
  6. Step 6: Final answer
    x = 77,888.64

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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.