Home / 130,345.72-179,876.46-70,729.72

Finding the Fourth Proportional to 130,345.72, 179,876.46 and 70,729.72

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Solution

The fourth proportional to 130,345.72, 179,876.46 and 70,729.72 is: 97,606.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,345.72 : 179,876.46 = 70,729.72 : x
  2. Step 2: Convert to fraction form
    130,345.72/179,876.46 = 70,729.72/x
  3. Step 3: Cross multiply
    130,345.72x = 179,876.46 × 70,729.72
  4. Step 4: Simplify right side
    130,345.72x = 12,722,611,650.39
  5. Step 5: Solve for x
    x = 12,722,611,650.39/130,345.72
  6. Step 6: Final answer
    x = 97,606.67

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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.