Home / 430,632.12-645,702.03-131,024.10

Finding the Fourth Proportional to 430,632.12, 645,702.03 and 131,024.10

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Solution

The fourth proportional to 430,632.12, 645,702.03 and 131,024.10 is: 196,461.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,632.12 : 645,702.03 = 131,024.10 : x
  2. Step 2: Convert to fraction form
    430,632.12/645,702.03 = 131,024.10/x
  3. Step 3: Cross multiply
    430,632.12x = 645,702.03 × 131,024.10
  4. Step 4: Simplify right side
    430,632.12x = 84,602,527,348.92
  5. Step 5: Solve for x
    x = 84,602,527,348.92/430,632.12
  6. Step 6: Final answer
    x = 196,461.26

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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.