Home / 114,945.51-172,332.39-79,305.15

Finding the Fourth Proportional to 114,945.51, 172,332.39 and 79,305.15

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Solution

The fourth proportional to 114,945.51, 172,332.39 and 79,305.15 is: 118,898.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,945.51 : 172,332.39 = 79,305.15 : x
  2. Step 2: Convert to fraction form
    114,945.51/172,332.39 = 79,305.15/x
  3. Step 3: Cross multiply
    114,945.51x = 172,332.39 × 79,305.15
  4. Step 4: Simplify right side
    114,945.51x = 13,666,846,038.81
  5. Step 5: Solve for x
    x = 13,666,846,038.81/114,945.51
  6. Step 6: Final answer
    x = 118,898.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.