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Finding the Fourth Proportional to 148,457.80, 204,597.01 and 105,439.17

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Solution

The fourth proportional to 148,457.80, 204,597.01 and 105,439.17 is: 145,310.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,457.80 : 204,597.01 = 105,439.17 : x
  2. Step 2: Convert to fraction form
    148,457.80/204,597.01 = 105,439.17/x
  3. Step 3: Cross multiply
    148,457.80x = 204,597.01 × 105,439.17
  4. Step 4: Simplify right side
    148,457.80x = 21,572,538,655.28
  5. Step 5: Solve for x
    x = 21,572,538,655.28/148,457.80
  6. Step 6: Final answer
    x = 145,310.92

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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.