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Finding the Fourth Proportional to 108,642.04, 149,998.80 and 67,868.08

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Solution

The fourth proportional to 108,642.04, 149,998.80 and 67,868.08 is: 93,703.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,642.04 : 149,998.80 = 67,868.08 : x
  2. Step 2: Convert to fraction form
    108,642.04/149,998.80 = 67,868.08/x
  3. Step 3: Cross multiply
    108,642.04x = 149,998.80 × 67,868.08
  4. Step 4: Simplify right side
    108,642.04x = 10,180,130,558.30
  5. Step 5: Solve for x
    x = 10,180,130,558.30/108,642.04
  6. Step 6: Final answer
    x = 93,703.42

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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.