Home / 112,381.89-168,572.22-45,821.76

Finding the Fourth Proportional to 112,381.89, 168,572.22 and 45,821.76

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Solution

The fourth proportional to 112,381.89, 168,572.22 and 45,821.76 is: 68,732.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,381.89 : 168,572.22 = 45,821.76 : x
  2. Step 2: Convert to fraction form
    112,381.89/168,572.22 = 45,821.76/x
  3. Step 3: Cross multiply
    112,381.89x = 168,572.22 × 45,821.76
  4. Step 4: Simplify right side
    112,381.89x = 7,724,275,807.51
  5. Step 5: Solve for x
    x = 7,724,275,807.51/112,381.89
  6. Step 6: Final answer
    x = 68,732.39

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1.5x scale

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.