Home / 130,446.32-180,018.83-73,089.91

Finding the Fourth Proportional to 130,446.32, 180,018.83 and 73,089.91

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Solution

The fourth proportional to 130,446.32, 180,018.83 and 73,089.91 is: 100,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,446.32 : 180,018.83 = 73,089.91 : x
  2. Step 2: Convert to fraction form
    130,446.32/180,018.83 = 73,089.91/x
  3. Step 3: Cross multiply
    130,446.32x = 180,018.83 × 73,089.91
  4. Step 4: Simplify right side
    130,446.32x = 13,157,558,817.46
  5. Step 5: Solve for x
    x = 13,157,558,817.46/130,446.32
  6. Step 6: Final answer
    x = 100,865.70

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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.