Home / 124,312.09-186,486.51-45,407.87

Finding the Fourth Proportional to 124,312.09, 186,486.51 and 45,407.87

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Solution

The fourth proportional to 124,312.09, 186,486.51 and 45,407.87 is: 68,118.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,312.09 : 186,486.51 = 45,407.87 : x
  2. Step 2: Convert to fraction form
    124,312.09/186,486.51 = 45,407.87/x
  3. Step 3: Cross multiply
    124,312.09x = 186,486.51 × 45,407.87
  4. Step 4: Simplify right side
    124,312.09x = 8,467,954,440.68
  5. Step 5: Solve for x
    x = 8,467,954,440.68/124,312.09
  6. Step 6: Final answer
    x = 68,118.51

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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.