Home / 189,772.40-261,878.04-113,303.94

Finding the Fourth Proportional to 189,772.40, 261,878.04 and 113,303.94

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Solution

The fourth proportional to 189,772.40, 261,878.04 and 113,303.94 is: 156,354.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,772.40 : 261,878.04 = 113,303.94 : x
  2. Step 2: Convert to fraction form
    189,772.40/261,878.04 = 113,303.94/x
  3. Step 3: Cross multiply
    189,772.40x = 261,878.04 × 113,303.94
  4. Step 4: Simplify right side
    189,772.40x = 29,671,813,731.48
  5. Step 5: Solve for x
    x = 29,671,813,731.48/189,772.40
  6. Step 6: Final answer
    x = 156,354.74

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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.