Home / 108,330.28-149,533.36-74,450.91

Finding the Fourth Proportional to 108,330.28, 149,533.36 and 74,450.91

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Solution

The fourth proportional to 108,330.28, 149,533.36 and 74,450.91 is: 102,768.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,330.28 : 149,533.36 = 74,450.91 : x
  2. Step 2: Convert to fraction form
    108,330.28/149,533.36 = 74,450.91/x
  3. Step 3: Cross multiply
    108,330.28x = 149,533.36 × 74,450.91
  4. Step 4: Simplify right side
    108,330.28x = 11,132,895,101.98
  5. Step 5: Solve for x
    x = 11,132,895,101.98/108,330.28
  6. Step 6: Final answer
    x = 102,768.08

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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.