Home / 430,143.04-645,083.36-114,558.96

Finding the Fourth Proportional to 430,143.04, 645,083.36 and 114,558.96

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Solution

The fourth proportional to 430,143.04, 645,083.36 and 114,558.96 is: 171,803.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,143.04 : 645,083.36 = 114,558.96 : x
  2. Step 2: Convert to fraction form
    430,143.04/645,083.36 = 114,558.96/x
  3. Step 3: Cross multiply
    430,143.04x = 645,083.36 × 114,558.96
  4. Step 4: Simplify right side
    430,143.04x = 73,900,078,834.91
  5. Step 5: Solve for x
    x = 73,900,078,834.91/430,143.04
  6. Step 6: Final answer
    x = 171,803.50

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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.