Home / 208,289.06-287,439.18-112,795.92

Finding the Fourth Proportional to 208,289.06, 287,439.18 and 112,795.92

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Solution

The fourth proportional to 208,289.06, 287,439.18 and 112,795.92 is: 155,658.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,289.06 : 287,439.18 = 112,795.92 : x
  2. Step 2: Convert to fraction form
    208,289.06/287,439.18 = 112,795.92/x
  3. Step 3: Cross multiply
    208,289.06x = 287,439.18 × 112,795.92
  4. Step 4: Simplify right side
    208,289.06x = 32,421,966,752.15
  5. Step 5: Solve for x
    x = 32,421,966,752.15/208,289.06
  6. Step 6: Final answer
    x = 155,658.52

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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.