Home / 140,281.48-193,585.32-76,619.50

Finding the Fourth Proportional to 140,281.48, 193,585.32 and 76,619.50

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Solution

The fourth proportional to 140,281.48, 193,585.32 and 76,619.50 is: 105,733.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,281.48 : 193,585.32 = 76,619.50 : x
  2. Step 2: Convert to fraction form
    140,281.48/193,585.32 = 76,619.50/x
  3. Step 3: Cross multiply
    140,281.48x = 193,585.32 × 76,619.50
  4. Step 4: Simplify right side
    140,281.48x = 14,832,410,425.74
  5. Step 5: Solve for x
    x = 14,832,410,425.74/140,281.48
  6. Step 6: Final answer
    x = 105,733.20

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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.