Home / 104,782.68-144,603.36-57,039.21

Finding the Fourth Proportional to 104,782.68, 144,603.36 and 57,039.21

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Solution

The fourth proportional to 104,782.68, 144,603.36 and 57,039.21 is: 78,715.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,782.68 : 144,603.36 = 57,039.21 : x
  2. Step 2: Convert to fraction form
    104,782.68/144,603.36 = 57,039.21/x
  3. Step 3: Cross multiply
    104,782.68x = 144,603.36 × 57,039.21
  4. Step 4: Simplify right side
    104,782.68x = 8,248,061,417.75
  5. Step 5: Solve for x
    x = 8,248,061,417.75/104,782.68
  6. Step 6: Final answer
    x = 78,715.89

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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.