Home / 112,148.70-154,763.22-61,161.81

Finding the Fourth Proportional to 112,148.70, 154,763.22 and 61,161.81

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Solution

The fourth proportional to 112,148.70, 154,763.22 and 61,161.81 is: 84,402.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,148.70 : 154,763.22 = 61,161.81 : x
  2. Step 2: Convert to fraction form
    112,148.70/154,763.22 = 61,161.81/x
  3. Step 3: Cross multiply
    112,148.70x = 154,763.22 × 61,161.81
  4. Step 4: Simplify right side
    112,148.70x = 9,465,598,656.63
  5. Step 5: Solve for x
    x = 9,465,598,656.63/112,148.70
  6. Step 6: Final answer
    x = 84,402.21

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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.