Home / 103,856.70-143,322.21-56,110.04

Finding the Fourth Proportional to 103,856.70, 143,322.21 and 56,110.04

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Solution

The fourth proportional to 103,856.70, 143,322.21 and 56,110.04 is: 77,431.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,856.70 : 143,322.21 = 56,110.04 : x
  2. Step 2: Convert to fraction form
    103,856.70/143,322.21 = 56,110.04/x
  3. Step 3: Cross multiply
    103,856.70x = 143,322.21 × 56,110.04
  4. Step 4: Simplify right side
    103,856.70x = 8,041,814,935.99
  5. Step 5: Solve for x
    x = 8,041,814,935.99/103,856.70
  6. Step 6: Final answer
    x = 77,431.84

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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.