Home / 105,230.79-145,266.27-67,042.70

Finding the Fourth Proportional to 105,230.79, 145,266.27 and 67,042.70

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Solution

The fourth proportional to 105,230.79, 145,266.27 and 67,042.70 is: 92,549.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,230.79 : 145,266.27 = 67,042.70 : x
  2. Step 2: Convert to fraction form
    105,230.79/145,266.27 = 67,042.70/x
  3. Step 3: Cross multiply
    105,230.79x = 145,266.27 × 67,042.70
  4. Step 4: Simplify right side
    105,230.79x = 9,739,042,959.73
  5. Step 5: Solve for x
    x = 9,739,042,959.73/105,230.79
  6. Step 6: Final answer
    x = 92,549.37

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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.