Home / 118,927.26-164,127.18-78,570.30

Finding the Fourth Proportional to 118,927.26, 164,127.18 and 78,570.30

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Solution

The fourth proportional to 118,927.26, 164,127.18 and 78,570.30 is: 108,432.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,927.26 : 164,127.18 = 78,570.30 : x
  2. Step 2: Convert to fraction form
    118,927.26/164,127.18 = 78,570.30/x
  3. Step 3: Cross multiply
    118,927.26x = 164,127.18 × 78,570.30
  4. Step 4: Simplify right side
    118,927.26x = 12,895,521,770.75
  5. Step 5: Solve for x
    x = 12,895,521,770.75/118,927.26
  6. Step 6: Final answer
    x = 108,432.01

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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.