Home / 104,164.32-143,738.08-61,139.16

Finding the Fourth Proportional to 104,164.32, 143,738.08 and 61,139.16

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Solution

The fourth proportional to 104,164.32, 143,738.08 and 61,139.16 is: 84,366.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,164.32 : 143,738.08 = 61,139.16 : x
  2. Step 2: Convert to fraction form
    104,164.32/143,738.08 = 61,139.16/x
  3. Step 3: Cross multiply
    104,164.32x = 143,738.08 × 61,139.16
  4. Step 4: Simplify right side
    104,164.32x = 8,788,025,471.21
  5. Step 5: Solve for x
    x = 8,788,025,471.21/104,164.32
  6. Step 6: Final answer
    x = 84,366.95

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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.