Home / 104,985.27-144,880.92-57,238.20

Finding the Fourth Proportional to 104,985.27, 144,880.92 and 57,238.20

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Solution

The fourth proportional to 104,985.27, 144,880.92 and 57,238.20 is: 78,989.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,985.27 : 144,880.92 = 57,238.20 : x
  2. Step 2: Convert to fraction form
    104,985.27/144,880.92 = 57,238.20/x
  3. Step 3: Cross multiply
    104,985.27x = 144,880.92 × 57,238.20
  4. Step 4: Simplify right side
    104,985.27x = 8,292,723,075.14
  5. Step 5: Solve for x
    x = 8,292,723,075.14/104,985.27
  6. Step 6: Final answer
    x = 78,989.40

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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.