Home / 208,089.18-287,162.32-112,595.44

Finding the Fourth Proportional to 208,089.18, 287,162.32 and 112,595.44

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Solution

The fourth proportional to 208,089.18, 287,162.32 and 112,595.44 is: 155,381.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,089.18 : 287,162.32 = 112,595.44 : x
  2. Step 2: Convert to fraction form
    208,089.18/287,162.32 = 112,595.44/x
  3. Step 3: Cross multiply
    208,089.18x = 287,162.32 × 112,595.44
  4. Step 4: Simplify right side
    208,089.18x = 32,333,167,771.82
  5. Step 5: Solve for x
    x = 32,333,167,771.82/208,089.18
  6. Step 6: Final answer
    x = 155,381.30

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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.