Home / 645,385.28-968,124.16-172,068.16

Finding the Fourth Proportional to 645,385.28, 968,124.16 and 172,068.16

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Solution

The fourth proportional to 645,385.28, 968,124.16 and 172,068.16 is: 258,114.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,385.28 : 968,124.16 = 172,068.16 : x
  2. Step 2: Convert to fraction form
    645,385.28/968,124.16 = 172,068.16/x
  3. Step 3: Cross multiply
    645,385.28x = 968,124.16 × 172,068.16
  4. Step 4: Simplify right side
    645,385.28x = 166,583,342,862.75
  5. Step 5: Solve for x
    x = 166,583,342,862.75/645,385.28
  6. Step 6: Final answer
    x = 258,114.57

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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.