Home / 208,095.81-287,017.74-126,423.66

Finding the Fourth Proportional to 208,095.81, 287,017.74 and 126,423.66

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Solution

The fourth proportional to 208,095.81, 287,017.74 and 126,423.66 is: 174,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,095.81 : 287,017.74 = 126,423.66 : x
  2. Step 2: Convert to fraction form
    208,095.81/287,017.74 = 126,423.66/x
  3. Step 3: Cross multiply
    208,095.81x = 287,017.74 × 126,423.66
  4. Step 4: Simplify right side
    208,095.81x = 36,285,833,175.73
  5. Step 5: Solve for x
    x = 36,285,833,175.73/208,095.81
  6. Step 6: Final answer
    x = 174,370.80

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1.5x scale

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.