Home / 208,017.09-287,062.25-112,521.74

Finding the Fourth Proportional to 208,017.09, 287,062.25 and 112,521.74

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Solution

The fourth proportional to 208,017.09, 287,062.25 and 112,521.74 is: 155,279.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,017.09 : 287,062.25 = 112,521.74 : x
  2. Step 2: Convert to fraction form
    208,017.09/287,062.25 = 112,521.74/x
  3. Step 3: Cross multiply
    208,017.09x = 287,062.25 × 112,521.74
  4. Step 4: Simplify right side
    208,017.09x = 32,300,741,860.40
  5. Step 5: Solve for x
    x = 32,300,741,860.40/208,017.09
  6. Step 6: Final answer
    x = 155,279.27

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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.