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Finding the Fourth Proportional to 110,253.60, 152,139.60 and 76,298.40

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Solution

The fourth proportional to 110,253.60, 152,139.60 and 76,298.40 is: 105,284.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,253.60 : 152,139.60 = 76,298.40 : x
  2. Step 2: Convert to fraction form
    110,253.60/152,139.60 = 76,298.40/x
  3. Step 3: Cross multiply
    110,253.60x = 152,139.60 × 76,298.40
  4. Step 4: Simplify right side
    110,253.60x = 11,608,008,056.64
  5. Step 5: Solve for x
    x = 11,608,008,056.64/110,253.60
  6. Step 6: Final answer
    x = 105,284.62

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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.