Home / 190,946.18-286,460.58-72,619.76

Finding the Fourth Proportional to 190,946.18, 286,460.58 and 72,619.76

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Solution

The fourth proportional to 190,946.18, 286,460.58 and 72,619.76 is: 108,945.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,946.18 : 286,460.58 = 72,619.76 : x
  2. Step 2: Convert to fraction form
    190,946.18/286,460.58 = 72,619.76/x
  3. Step 3: Cross multiply
    190,946.18x = 286,460.58 × 72,619.76
  4. Step 4: Simplify right side
    190,946.18x = 20,802,697,136.76
  5. Step 5: Solve for x
    x = 20,802,697,136.76/190,946.18
  6. Step 6: Final answer
    x = 108,945.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.