Home / 208,483.35-287,708.03-112,990.02

Finding the Fourth Proportional to 208,483.35, 287,708.03 and 112,990.02

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Solution

The fourth proportional to 208,483.35, 287,708.03 and 112,990.02 is: 155,926.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,483.35 : 287,708.03 = 112,990.02 : x
  2. Step 2: Convert to fraction form
    208,483.35/287,708.03 = 112,990.02/x
  3. Step 3: Cross multiply
    208,483.35x = 287,708.03 × 112,990.02
  4. Step 4: Simplify right side
    208,483.35x = 32,508,136,063.86
  5. Step 5: Solve for x
    x = 32,508,136,063.86/208,483.35
  6. Step 6: Final answer
    x = 155,926.77

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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.