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Finding the Fourth Proportional to 105,258.88, 145,354.26 and 67,598.74

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Solution

The fourth proportional to 105,258.88, 145,354.26 and 67,598.74 is: 93,348.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,258.88 : 145,354.26 = 67,598.74 : x
  2. Step 2: Convert to fraction form
    105,258.88/145,354.26 = 67,598.74/x
  3. Step 3: Cross multiply
    105,258.88x = 145,354.26 × 67,598.74
  4. Step 4: Simplify right side
    105,258.88x = 9,825,764,829.63
  5. Step 5: Solve for x
    x = 9,825,764,829.63/105,258.88
  6. Step 6: Final answer
    x = 93,348.56

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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.