Home / 140,444.52-193,813.36-76,782.28

Finding the Fourth Proportional to 140,444.52, 193,813.36 and 76,782.28

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Solution

The fourth proportional to 140,444.52, 193,813.36 and 76,782.28 is: 105,959.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,444.52 : 193,813.36 = 76,782.28 : x
  2. Step 2: Convert to fraction form
    140,444.52/193,813.36 = 76,782.28/x
  3. Step 3: Cross multiply
    140,444.52x = 193,813.36 × 76,782.28
  4. Step 4: Simplify right side
    140,444.52x = 14,881,431,675.26
  5. Step 5: Solve for x
    x = 14,881,431,675.26/140,444.52
  6. Step 6: Final answer
    x = 105,959.50

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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.