Home / 130,944.47-180,697.53-76,501.68

Finding the Fourth Proportional to 130,944.47, 180,697.53 and 76,501.68

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Solution

The fourth proportional to 130,944.47, 180,697.53 and 76,501.68 is: 105,568.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,944.47 : 180,697.53 = 76,501.68 : x
  2. Step 2: Convert to fraction form
    130,944.47/180,697.53 = 76,501.68/x
  3. Step 3: Cross multiply
    130,944.47x = 180,697.53 × 76,501.68
  4. Step 4: Simplify right side
    130,944.47x = 13,823,664,616.85
  5. Step 5: Solve for x
    x = 13,823,664,616.85/130,944.47
  6. Step 6: Final answer
    x = 105,568.91

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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.