Home / 103,407.13-155,111.36-56,634.49

Finding the Fourth Proportional to 103,407.13, 155,111.36 and 56,634.49

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Solution

The fourth proportional to 103,407.13, 155,111.36 and 56,634.49 is: 84,952.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,407.13 : 155,111.36 = 56,634.49 : x
  2. Step 2: Convert to fraction form
    103,407.13/155,111.36 = 56,634.49/x
  3. Step 3: Cross multiply
    103,407.13x = 155,111.36 × 56,634.49
  4. Step 4: Simplify right side
    103,407.13x = 8,784,652,766.81
  5. Step 5: Solve for x
    x = 8,784,652,766.81/103,407.13
  6. Step 6: Final answer
    x = 84,952.10

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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.