Home / 104,535.45-144,258.13-56,789.14

Finding the Fourth Proportional to 104,535.45, 144,258.13 and 56,789.14

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Solution

The fourth proportional to 104,535.45, 144,258.13 and 56,789.14 is: 78,368.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,535.45 : 144,258.13 = 56,789.14 : x
  2. Step 2: Convert to fraction form
    104,535.45/144,258.13 = 56,789.14/x
  3. Step 3: Cross multiply
    104,535.45x = 144,258.13 × 56,789.14
  4. Step 4: Simplify right side
    104,535.45x = 8,192,295,140.71
  5. Step 5: Solve for x
    x = 8,192,295,140.71/104,535.45
  6. Step 6: Final answer
    x = 78,368.58

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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.