Home / 112,465.18-168,780.66-53,300.62

Finding the Fourth Proportional to 112,465.18, 168,780.66 and 53,300.62

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Solution

The fourth proportional to 112,465.18, 168,780.66 and 53,300.62 is: 79,990.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,465.18 : 168,780.66 = 53,300.62 : x
  2. Step 2: Convert to fraction form
    112,465.18/168,780.66 = 53,300.62/x
  3. Step 3: Cross multiply
    112,465.18x = 168,780.66 × 53,300.62
  4. Step 4: Simplify right side
    112,465.18x = 8,996,113,822.01
  5. Step 5: Solve for x
    x = 8,996,113,822.01/112,465.18
  6. Step 6: Final answer
    x = 79,990.21

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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.