Home / 104,985.55-144,880.90-57,239.24

Finding the Fourth Proportional to 104,985.55, 144,880.90 and 57,239.24

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Solution

The fourth proportional to 104,985.55, 144,880.90 and 57,239.24 is: 78,990.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,985.55 : 144,880.90 = 57,239.24 : x
  2. Step 2: Convert to fraction form
    104,985.55/144,880.90 = 57,239.24/x
  3. Step 3: Cross multiply
    104,985.55x = 144,880.90 × 57,239.24
  4. Step 4: Simplify right side
    104,985.55x = 8,292,872,606.52
  5. Step 5: Solve for x
    x = 8,292,872,606.52/104,985.55
  6. Step 6: Final answer
    x = 78,990.61

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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.