Home / 103,615.10-155,537.85-64,216.70

Finding the Fourth Proportional to 103,615.10, 155,537.85 and 64,216.70

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Solution

The fourth proportional to 103,615.10, 155,537.85 and 64,216.70 is: 96,396.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,615.10 : 155,537.85 = 64,216.70 : x
  2. Step 2: Convert to fraction form
    103,615.10/155,537.85 = 64,216.70/x
  3. Step 3: Cross multiply
    103,615.10x = 155,537.85 × 64,216.70
  4. Step 4: Simplify right side
    103,615.10x = 9,988,127,452.10
  5. Step 5: Solve for x
    x = 9,988,127,452.10/103,615.10
  6. Step 6: Final answer
    x = 96,396.45

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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.