Home / 108,139.04-149,334.54-102,248.72

Finding the Fourth Proportional to 108,139.04, 149,334.54 and 102,248.72

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Solution

The fourth proportional to 108,139.04, 149,334.54 and 102,248.72 is: 141,200.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,139.04 : 149,334.54 = 102,248.72 : x
  2. Step 2: Convert to fraction form
    108,139.04/149,334.54 = 102,248.72/x
  3. Step 3: Cross multiply
    108,139.04x = 149,334.54 × 102,248.72
  4. Step 4: Simplify right side
    108,139.04x = 15,269,265,566.79
  5. Step 5: Solve for x
    x = 15,269,265,566.79/108,139.04
  6. Step 6: Final answer
    x = 141,200.31

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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.