Home / 130,663.06-180,322.87-76,983.86

Finding the Fourth Proportional to 130,663.06, 180,322.87 and 76,983.86

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Solution

The fourth proportional to 130,663.06, 180,322.87 and 76,983.86 is: 106,242.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,663.06 : 180,322.87 = 76,983.86 : x
  2. Step 2: Convert to fraction form
    130,663.06/180,322.87 = 76,983.86/x
  3. Step 3: Cross multiply
    130,663.06x = 180,322.87 × 76,983.86
  4. Step 4: Simplify right side
    130,663.06x = 13,881,950,578.88
  5. Step 5: Solve for x
    x = 13,881,950,578.88/130,663.06
  6. Step 6: Final answer
    x = 106,242.35

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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.