Home / 140,345.87-193,675.02-76,682.30

Finding the Fourth Proportional to 140,345.87, 193,675.02 and 76,682.30

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Solution

The fourth proportional to 140,345.87, 193,675.02 and 76,682.30 is: 105,820.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,345.87 : 193,675.02 = 76,682.30 : x
  2. Step 2: Convert to fraction form
    140,345.87/193,675.02 = 76,682.30/x
  3. Step 3: Cross multiply
    140,345.87x = 193,675.02 × 76,682.30
  4. Step 4: Simplify right side
    140,345.87x = 14,851,445,986.15
  5. Step 5: Solve for x
    x = 14,851,445,986.15/140,345.87
  6. Step 6: Final answer
    x = 105,820.33

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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.