Home / 104,931.83-144,807.68-57,187.19

Finding the Fourth Proportional to 104,931.83, 144,807.68 and 57,187.19

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Solution

The fourth proportional to 104,931.83, 144,807.68 and 57,187.19 is: 78,919.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,931.83 : 144,807.68 = 57,187.19 : x
  2. Step 2: Convert to fraction form
    104,931.83/144,807.68 = 57,187.19/x
  3. Step 3: Cross multiply
    104,931.83x = 144,807.68 × 57,187.19
  4. Step 4: Simplify right side
    104,931.83x = 8,281,144,309.62
  5. Step 5: Solve for x
    x = 8,281,144,309.62/104,931.83
  6. Step 6: Final answer
    x = 78,919.28

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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.