Home / 103,864.64-143,341.41-57,930.81

Finding the Fourth Proportional to 103,864.64, 143,341.41 and 57,930.81

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Solution

The fourth proportional to 103,864.64, 143,341.41 and 57,930.81 is: 79,949.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,864.64 : 143,341.41 = 57,930.81 : x
  2. Step 2: Convert to fraction form
    103,864.64/143,341.41 = 57,930.81/x
  3. Step 3: Cross multiply
    103,864.64x = 143,341.41 × 57,930.81
  4. Step 4: Simplify right side
    103,864.64x = 8,303,883,341.69
  5. Step 5: Solve for x
    x = 8,303,883,341.69/103,864.64
  6. Step 6: Final answer
    x = 79,949.09

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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.