Home / 208,423.55-287,629.85-127,895.58

Finding the Fourth Proportional to 208,423.55, 287,629.85 and 127,895.58

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Solution

The fourth proportional to 208,423.55, 287,629.85 and 127,895.58 is: 176,499.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,423.55 : 287,629.85 = 127,895.58 : x
  2. Step 2: Convert to fraction form
    208,423.55/287,629.85 = 127,895.58/x
  3. Step 3: Cross multiply
    208,423.55x = 287,629.85 × 127,895.58
  4. Step 4: Simplify right side
    208,423.55x = 36,786,586,810.80
  5. Step 5: Solve for x
    x = 36,786,586,810.80/208,423.55
  6. Step 6: Final answer
    x = 176,499.18

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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.