Home / 158,852.93-219,219.55-86,255.78

Finding the Fourth Proportional to 158,852.93, 219,219.55 and 86,255.78

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Solution

The fourth proportional to 158,852.93, 219,219.55 and 86,255.78 is: 119,034.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,852.93 : 219,219.55 = 86,255.78 : x
  2. Step 2: Convert to fraction form
    158,852.93/219,219.55 = 86,255.78/x
  3. Step 3: Cross multiply
    158,852.93x = 219,219.55 × 86,255.78
  4. Step 4: Simplify right side
    158,852.93x = 18,908,953,276.50
  5. Step 5: Solve for x
    x = 18,908,953,276.50/158,852.93
  6. Step 6: Final answer
    x = 119,034.34

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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.