Home / 208,070.74-287,135.58-112,575.34

Finding the Fourth Proportional to 208,070.74, 287,135.58 and 112,575.34

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Solution

The fourth proportional to 208,070.74, 287,135.58 and 112,575.34 is: 155,352.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,070.74 : 287,135.58 = 112,575.34 : x
  2. Step 2: Convert to fraction form
    208,070.74/287,135.58 = 112,575.34/x
  3. Step 3: Cross multiply
    208,070.74x = 287,135.58 × 112,575.34
  4. Step 4: Simplify right side
    208,070.74x = 32,324,385,544.60
  5. Step 5: Solve for x
    x = 32,324,385,544.60/208,070.74
  6. Step 6: Final answer
    x = 155,352.86

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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.