Home / 208,009.18-287,052.42-112,515.58

Finding the Fourth Proportional to 208,009.18, 287,052.42 and 112,515.58

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Solution

The fourth proportional to 208,009.18, 287,052.42 and 112,515.58 is: 155,271.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,009.18 : 287,052.42 = 112,515.58 : x
  2. Step 2: Convert to fraction form
    208,009.18/287,052.42 = 112,515.58/x
  3. Step 3: Cross multiply
    208,009.18x = 287,052.42 × 112,515.58
  4. Step 4: Simplify right side
    208,009.18x = 32,297,869,526.70
  5. Step 5: Solve for x
    x = 32,297,869,526.70/208,009.18
  6. Step 6: Final answer
    x = 155,271.37

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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.