Home / 103,639.10-155,549.78-61,466.45

Finding the Fourth Proportional to 103,639.10, 155,549.78 and 61,466.45

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Solution

The fourth proportional to 103,639.10, 155,549.78 and 61,466.45 is: 92,253.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.10 : 155,549.78 = 61,466.45 : x
  2. Step 2: Convert to fraction form
    103,639.10/155,549.78 = 61,466.45/x
  3. Step 3: Cross multiply
    103,639.10x = 155,549.78 × 61,466.45
  4. Step 4: Simplify right side
    103,639.10x = 9,561,092,774.88
  5. Step 5: Solve for x
    x = 9,561,092,774.88/103,639.10
  6. Step 6: Final answer
    x = 92,253.72

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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.