Home / 130,531.86-180,146.70-73,180.98

Finding the Fourth Proportional to 130,531.86, 180,146.70 and 73,180.98

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Solution

The fourth proportional to 130,531.86, 180,146.70 and 73,180.98 is: 100,996.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,531.86 : 180,146.70 = 73,180.98 : x
  2. Step 2: Convert to fraction form
    130,531.86/180,146.70 = 73,180.98/x
  3. Step 3: Cross multiply
    130,531.86x = 180,146.70 × 73,180.98
  4. Step 4: Simplify right side
    130,531.86x = 13,183,312,049.77
  5. Step 5: Solve for x
    x = 13,183,312,049.77/130,531.86
  6. Step 6: Final answer
    x = 100,996.89

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1.5x scale

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.