Home / 208,448.20-287,659.89-112,955.68

Finding the Fourth Proportional to 208,448.20, 287,659.89 and 112,955.68

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Solution

The fourth proportional to 208,448.20, 287,659.89 and 112,955.68 is: 155,879.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,448.20 : 287,659.89 = 112,955.68 : x
  2. Step 2: Convert to fraction form
    208,448.20/287,659.89 = 112,955.68/x
  3. Step 3: Cross multiply
    208,448.20x = 287,659.89 × 112,955.68
  4. Step 4: Simplify right side
    208,448.20x = 32,492,818,483.68
  5. Step 5: Solve for x
    x = 32,492,818,483.68/208,448.20
  6. Step 6: Final answer
    x = 155,879.58

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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.