Home / 130,669.56-180,302.13-76,965.26

Finding the Fourth Proportional to 130,669.56, 180,302.13 and 76,965.26

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Solution

The fourth proportional to 130,669.56, 180,302.13 and 76,965.26 is: 106,199.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,669.56 : 180,302.13 = 76,965.26 : x
  2. Step 2: Convert to fraction form
    130,669.56/180,302.13 = 76,965.26/x
  3. Step 3: Cross multiply
    130,669.56x = 180,302.13 × 76,965.26
  4. Step 4: Simplify right side
    130,669.56x = 13,877,000,476.14
  5. Step 5: Solve for x
    x = 13,877,000,476.14/130,669.56
  6. Step 6: Final answer
    x = 106,199.19

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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.