Home / 208,632.58-287,913.04-113,139.24

Finding the Fourth Proportional to 208,632.58, 287,913.04 and 113,139.24

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Solution

The fourth proportional to 208,632.58, 287,913.04 and 113,139.24 is: 156,132.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,632.58 : 287,913.04 = 113,139.24 : x
  2. Step 2: Convert to fraction form
    208,632.58/287,913.04 = 113,139.24/x
  3. Step 3: Cross multiply
    208,632.58x = 287,913.04 × 113,139.24
  4. Step 4: Simplify right side
    208,632.58x = 32,574,262,531.69
  5. Step 5: Solve for x
    x = 32,574,262,531.69/208,632.58
  6. Step 6: Final answer
    x = 156,132.19

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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.