Home / 140,339.12-193,670.60-76,675.55

Finding the Fourth Proportional to 140,339.12, 193,670.60 and 76,675.55

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Solution

The fourth proportional to 140,339.12, 193,670.60 and 76,675.55 is: 105,813.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,339.12 : 193,670.60 = 76,675.55 : x
  2. Step 2: Convert to fraction form
    140,339.12/193,670.60 = 76,675.55/x
  3. Step 3: Cross multiply
    140,339.12x = 193,670.60 × 76,675.55
  4. Step 4: Simplify right side
    140,339.12x = 14,849,798,422.10
  5. Step 5: Solve for x
    x = 14,849,798,422.10/140,339.12
  6. Step 6: Final answer
    x = 105,813.68

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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.