Home / 108,130.14-161,977.73-53,931.42

Finding the Fourth Proportional to 108,130.14, 161,977.73 and 53,931.42

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Solution

The fourth proportional to 108,130.14, 161,977.73 and 53,931.42 is: 80,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,130.14 : 161,977.73 = 53,931.42 : x
  2. Step 2: Convert to fraction form
    108,130.14/161,977.73 = 53,931.42/x
  3. Step 3: Cross multiply
    108,130.14x = 161,977.73 × 53,931.42
  4. Step 4: Simplify right side
    108,130.14x = 8,735,688,717.62
  5. Step 5: Solve for x
    x = 8,735,688,717.62/108,130.14
  6. Step 6: Final answer
    x = 80,788.66

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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.