Home / 107,428.50-160,354.19-99,511.56

Finding the Fourth Proportional to 107,428.50, 160,354.19 and 99,511.56

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Solution

The fourth proportional to 107,428.50, 160,354.19 and 99,511.56 is: 148,536.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,428.50 : 160,354.19 = 99,511.56 : x
  2. Step 2: Convert to fraction form
    107,428.50/160,354.19 = 99,511.56/x
  3. Step 3: Cross multiply
    107,428.50x = 160,354.19 × 99,511.56
  4. Step 4: Simplify right side
    107,428.50x = 15,957,095,813.74
  5. Step 5: Solve for x
    x = 15,957,095,813.74/107,428.50
  6. Step 6: Final answer
    x = 148,536.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.