Home / 108,666.89-162,986.49-42,061.45

Finding the Fourth Proportional to 108,666.89, 162,986.49 and 42,061.45

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Solution

The fourth proportional to 108,666.89, 162,986.49 and 42,061.45 is: 63,086.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,666.89 : 162,986.49 = 42,061.45 : x
  2. Step 2: Convert to fraction form
    108,666.89/162,986.49 = 42,061.45/x
  3. Step 3: Cross multiply
    108,666.89x = 162,986.49 × 42,061.45
  4. Step 4: Simplify right side
    108,666.89x = 6,855,448,099.81
  5. Step 5: Solve for x
    x = 6,855,448,099.81/108,666.89
  6. Step 6: Final answer
    x = 63,086.82

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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.