Home / 140,211.08-193,494.58-76,549.32

Finding the Fourth Proportional to 140,211.08, 193,494.58 and 76,549.32

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Solution

The fourth proportional to 140,211.08, 193,494.58 and 76,549.32 is: 105,639.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,211.08 : 193,494.58 = 76,549.32 : x
  2. Step 2: Convert to fraction form
    140,211.08/193,494.58 = 76,549.32/x
  3. Step 3: Cross multiply
    140,211.08x = 193,494.58 × 76,549.32
  4. Step 4: Simplify right side
    140,211.08x = 14,811,878,522.69
  5. Step 5: Solve for x
    x = 14,811,878,522.69/140,211.08
  6. Step 6: Final answer
    x = 105,639.86

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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.