Home / 131,130.51-180,959.82-73,769.87

Finding the Fourth Proportional to 131,130.51, 180,959.82 and 73,769.87

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Solution

The fourth proportional to 131,130.51, 180,959.82 and 73,769.87 is: 101,802.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,130.51 : 180,959.82 = 73,769.87 : x
  2. Step 2: Convert to fraction form
    131,130.51/180,959.82 = 73,769.87/x
  3. Step 3: Cross multiply
    131,130.51x = 180,959.82 × 73,769.87
  4. Step 4: Simplify right side
    131,130.51x = 13,349,381,491.82
  5. Step 5: Solve for x
    x = 13,349,381,491.82/131,130.51
  6. Step 6: Final answer
    x = 101,802.25

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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.