Home / 189,312.84-261,231.52-104,429.90

Finding the Fourth Proportional to 189,312.84, 261,231.52 and 104,429.90

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Solution

The fourth proportional to 189,312.84, 261,231.52 and 104,429.90 is: 144,102.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,312.84 : 261,231.52 = 104,429.90 : x
  2. Step 2: Convert to fraction form
    189,312.84/261,231.52 = 104,429.90/x
  3. Step 3: Cross multiply
    189,312.84x = 261,231.52 × 104,429.90
  4. Step 4: Simplify right side
    189,312.84x = 27,280,381,510.45
  5. Step 5: Solve for x
    x = 27,280,381,510.45/189,312.84
  6. Step 6: Final answer
    x = 144,102.12

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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.