Home / 104,840.55-144,686.03-78,952.75

Finding the Fourth Proportional to 104,840.55, 144,686.03 and 78,952.75

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Solution

The fourth proportional to 104,840.55, 144,686.03 and 78,952.75 is: 108,959.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,840.55 : 144,686.03 = 78,952.75 : x
  2. Step 2: Convert to fraction form
    104,840.55/144,686.03 = 78,952.75/x
  3. Step 3: Cross multiply
    104,840.55x = 144,686.03 × 78,952.75
  4. Step 4: Simplify right side
    104,840.55x = 11,423,359,955.08
  5. Step 5: Solve for x
    x = 11,423,359,955.08/104,840.55
  6. Step 6: Final answer
    x = 108,959.37

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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.