Home / 112,765.56-155,541.51-72,530.22

Finding the Fourth Proportional to 112,765.56, 155,541.51 and 72,530.22

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Solution

The fourth proportional to 112,765.56, 155,541.51 and 72,530.22 is: 100,043.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,765.56 : 155,541.51 = 72,530.22 : x
  2. Step 2: Convert to fraction form
    112,765.56/155,541.51 = 72,530.22/x
  3. Step 3: Cross multiply
    112,765.56x = 155,541.51 × 72,530.22
  4. Step 4: Simplify right side
    112,765.56x = 11,281,459,939.43
  5. Step 5: Solve for x
    x = 11,281,459,939.43/112,765.56
  6. Step 6: Final answer
    x = 100,043.49

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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.