Home / 130,836.49-180,577.92-77,118.37

Finding the Fourth Proportional to 130,836.49, 180,577.92 and 77,118.37

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Solution

The fourth proportional to 130,836.49, 180,577.92 and 77,118.37 is: 106,437.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,836.49 : 180,577.92 = 77,118.37 : x
  2. Step 2: Convert to fraction form
    130,836.49/180,577.92 = 77,118.37/x
  3. Step 3: Cross multiply
    130,836.49x = 180,577.92 × 77,118.37
  4. Step 4: Simplify right side
    130,836.49x = 13,925,874,848.39
  5. Step 5: Solve for x
    x = 13,925,874,848.39/130,836.49
  6. Step 6: Final answer
    x = 106,437.24

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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.