Home / 108,442.04-149,655.74-68,140.89

Finding the Fourth Proportional to 108,442.04, 149,655.74 and 68,140.89

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Solution

The fourth proportional to 108,442.04, 149,655.74 and 68,140.89 is: 94,038.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,442.04 : 149,655.74 = 68,140.89 : x
  2. Step 2: Convert to fraction form
    108,442.04/149,655.74 = 68,140.89/x
  3. Step 3: Cross multiply
    108,442.04x = 149,655.74 × 68,140.89
  4. Step 4: Simplify right side
    108,442.04x = 10,197,674,976.50
  5. Step 5: Solve for x
    x = 10,197,674,976.50/108,442.04
  6. Step 6: Final answer
    x = 94,038.03

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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.