Home / 104,623.64-144,378.91-56,878.19

Finding the Fourth Proportional to 104,623.64, 144,378.91 and 56,878.19

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Solution

The fourth proportional to 104,623.64, 144,378.91 and 56,878.19 is: 78,490.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,623.64 : 144,378.91 = 56,878.19 : x
  2. Step 2: Convert to fraction form
    104,623.64/144,378.91 = 56,878.19/x
  3. Step 3: Cross multiply
    104,623.64x = 144,378.91 × 56,878.19
  4. Step 4: Simplify right side
    104,623.64x = 8,212,011,074.97
  5. Step 5: Solve for x
    x = 8,212,011,074.97/104,623.64
  6. Step 6: Final answer
    x = 78,490.97

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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.