Home / 112,832.81-155,726.43-72,014.56

Finding the Fourth Proportional to 112,832.81, 155,726.43 and 72,014.56

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Solution

The fourth proportional to 112,832.81, 155,726.43 and 72,014.56 is: 99,391.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,832.81 : 155,726.43 = 72,014.56 : x
  2. Step 2: Convert to fraction form
    112,832.81/155,726.43 = 72,014.56/x
  3. Step 3: Cross multiply
    112,832.81x = 155,726.43 × 72,014.56
  4. Step 4: Simplify right side
    112,832.81x = 11,214,569,677.45
  5. Step 5: Solve for x
    x = 11,214,569,677.45/112,832.81
  6. Step 6: Final answer
    x = 99,391.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.