Home / 107,280.05-160,931.31-39,830.54

Finding the Fourth Proportional to 107,280.05, 160,931.31 and 39,830.54

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Solution

The fourth proportional to 107,280.05, 160,931.31 and 39,830.54 is: 59,749.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,280.05 : 160,931.31 = 39,830.54 : x
  2. Step 2: Convert to fraction form
    107,280.05/160,931.31 = 39,830.54/x
  3. Step 3: Cross multiply
    107,280.05x = 160,931.31 × 39,830.54
  4. Step 4: Simplify right side
    107,280.05x = 6,409,980,980.21
  5. Step 5: Solve for x
    x = 6,409,980,980.21/107,280.05
  6. Step 6: Final answer
    x = 59,749.98

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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.