Home / 91,276.40-136,723.61-73,410.50

Finding the Fourth Proportional to 91,276.40, 136,723.61 and 73,410.50

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Solution

The fourth proportional to 91,276.40, 136,723.61 and 73,410.50 is: 109,962.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,276.40 : 136,723.61 = 73,410.50 : x
  2. Step 2: Convert to fraction form
    91,276.40/136,723.61 = 73,410.50/x
  3. Step 3: Cross multiply
    91,276.40x = 136,723.61 × 73,410.50
  4. Step 4: Simplify right side
    91,276.40x = 10,036,949,097.24
  5. Step 5: Solve for x
    x = 10,036,949,097.24/91,276.40
  6. Step 6: Final answer
    x = 109,962.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.