Home / 145,166.14-199,914.51-130,702.78

Finding the Fourth Proportional to 145,166.14, 199,914.51 and 130,702.78

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Solution

The fourth proportional to 145,166.14, 199,914.51 and 130,702.78 is: 179,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,166.14 : 199,914.51 = 130,702.78 : x
  2. Step 2: Convert to fraction form
    145,166.14/199,914.51 = 130,702.78/x
  3. Step 3: Cross multiply
    145,166.14x = 199,914.51 × 130,702.78
  4. Step 4: Simplify right side
    145,166.14x = 26,129,382,219.34
  5. Step 5: Solve for x
    x = 26,129,382,219.34/145,166.14
  6. Step 6: Final answer
    x = 179,996.40

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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.