Home / 130,892.54-180,647.80-77,182.34

Finding the Fourth Proportional to 130,892.54, 180,647.80 and 77,182.34

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Solution

The fourth proportional to 130,892.54, 180,647.80 and 77,182.34 is: 106,521.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,892.54 : 180,647.80 = 77,182.34 : x
  2. Step 2: Convert to fraction form
    130,892.54/180,647.80 = 77,182.34/x
  3. Step 3: Cross multiply
    130,892.54x = 180,647.80 × 77,182.34
  4. Step 4: Simplify right side
    130,892.54x = 13,942,818,823.66
  5. Step 5: Solve for x
    x = 13,942,818,823.66/130,892.54
  6. Step 6: Final answer
    x = 106,521.12

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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.