Home / 130,860.51-180,587.54-73,499.92

Finding the Fourth Proportional to 130,860.51, 180,587.54 and 73,499.92

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Solution

The fourth proportional to 130,860.51, 180,587.54 and 73,499.92 is: 101,429.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,860.51 : 180,587.54 = 73,499.92 : x
  2. Step 2: Convert to fraction form
    130,860.51/180,587.54 = 73,499.92/x
  3. Step 3: Cross multiply
    130,860.51x = 180,587.54 × 73,499.92
  4. Step 4: Simplify right side
    130,860.51x = 13,273,169,743.00
  5. Step 5: Solve for x
    x = 13,273,169,743.00/130,860.51
  6. Step 6: Final answer
    x = 101,429.91

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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.