Home / 130,632.51-180,286.96-74,037.81

Finding the Fourth Proportional to 130,632.51, 180,286.96 and 74,037.81

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Solution

The fourth proportional to 130,632.51, 180,286.96 and 74,037.81 is: 102,180.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,632.51 : 180,286.96 = 74,037.81 : x
  2. Step 2: Convert to fraction form
    130,632.51/180,286.96 = 74,037.81/x
  3. Step 3: Cross multiply
    130,632.51x = 180,286.96 × 74,037.81
  4. Step 4: Simplify right side
    130,632.51x = 13,348,051,689.96
  5. Step 5: Solve for x
    x = 13,348,051,689.96/130,632.51
  6. Step 6: Final answer
    x = 102,180.17

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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.