Home / 130,871.08-180,625.44-77,152.96

Finding the Fourth Proportional to 130,871.08, 180,625.44 and 77,152.96

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Solution

The fourth proportional to 130,871.08, 180,625.44 and 77,152.96 is: 106,484.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,871.08 : 180,625.44 = 77,152.96 : x
  2. Step 2: Convert to fraction form
    130,871.08/180,625.44 = 77,152.96/x
  3. Step 3: Cross multiply
    130,871.08x = 180,625.44 × 77,152.96
  4. Step 4: Simplify right side
    130,871.08x = 13,935,787,347.30
  5. Step 5: Solve for x
    x = 13,935,787,347.30/130,871.08
  6. Step 6: Final answer
    x = 106,484.85

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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.