Home / 102,276.26-141,138.61-99,258.20

Finding the Fourth Proportional to 102,276.26, 141,138.61 and 99,258.20

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Solution

The fourth proportional to 102,276.26, 141,138.61 and 99,258.20 is: 136,973.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,276.26 : 141,138.61 = 99,258.20 : x
  2. Step 2: Convert to fraction form
    102,276.26/141,138.61 = 99,258.20/x
  3. Step 3: Cross multiply
    102,276.26x = 141,138.61 × 99,258.20
  4. Step 4: Simplify right side
    102,276.26x = 14,009,163,425.26
  5. Step 5: Solve for x
    x = 14,009,163,425.26/102,276.26
  6. Step 6: Final answer
    x = 136,973.76

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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.