Home / 119,026.85-164,256.80-65,312.51

Finding the Fourth Proportional to 119,026.85, 164,256.80 and 65,312.51

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Solution

The fourth proportional to 119,026.85, 164,256.80 and 65,312.51 is: 90,131.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,026.85 : 164,256.80 = 65,312.51 : x
  2. Step 2: Convert to fraction form
    119,026.85/164,256.80 = 65,312.51/x
  3. Step 3: Cross multiply
    119,026.85x = 164,256.80 × 65,312.51
  4. Step 4: Simplify right side
    119,026.85x = 10,728,022,744.72
  5. Step 5: Solve for x
    x = 10,728,022,744.72/119,026.85
  6. Step 6: Final answer
    x = 90,131.12

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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.