Home / 140,275.87-193,580.38-76,613.67

Finding the Fourth Proportional to 140,275.87, 193,580.38 and 76,613.67

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Solution

The fourth proportional to 140,275.87, 193,580.38 and 76,613.67 is: 105,726.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,275.87 : 193,580.38 = 76,613.67 : x
  2. Step 2: Convert to fraction form
    140,275.87/193,580.38 = 76,613.67/x
  3. Step 3: Cross multiply
    140,275.87x = 193,580.38 × 76,613.67
  4. Step 4: Simplify right side
    140,275.87x = 14,830,903,351.79
  5. Step 5: Solve for x
    x = 14,830,903,351.79/140,275.87
  6. Step 6: Final answer
    x = 105,726.69

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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.