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Finding the Fourth Proportional to 159,045.75, 219,483.59 and 91,063.77

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Solution

The fourth proportional to 159,045.75, 219,483.59 and 91,063.77 is: 125,668.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,045.75 : 219,483.59 = 91,063.77 : x
  2. Step 2: Convert to fraction form
    159,045.75/219,483.59 = 91,063.77/x
  3. Step 3: Cross multiply
    159,045.75x = 219,483.59 × 91,063.77
  4. Step 4: Simplify right side
    159,045.75x = 19,987,003,386.19
  5. Step 5: Solve for x
    x = 19,987,003,386.19/159,045.75
  6. Step 6: Final answer
    x = 125,668.26

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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.