Home / 140,303.71-193,611.89-76,629.20

Finding the Fourth Proportional to 140,303.71, 193,611.89 and 76,629.20

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Solution

The fourth proportional to 140,303.71, 193,611.89 and 76,629.20 is: 105,744.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,303.71 : 193,611.89 = 76,629.20 : x
  2. Step 2: Convert to fraction form
    140,303.71/193,611.89 = 76,629.20/x
  3. Step 3: Cross multiply
    140,303.71x = 193,611.89 × 76,629.20
  4. Step 4: Simplify right side
    140,303.71x = 14,836,323,858.04
  5. Step 5: Solve for x
    x = 14,836,323,858.04/140,303.71
  6. Step 6: Final answer
    x = 105,744.35

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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.