Home / 131,403.39-197,136.05-42,650.07

Finding the Fourth Proportional to 131,403.39, 197,136.05 and 42,650.07

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Solution

The fourth proportional to 131,403.39, 197,136.05 and 42,650.07 is: 63,985.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,403.39 : 197,136.05 = 42,650.07 : x
  2. Step 2: Convert to fraction form
    131,403.39/197,136.05 = 42,650.07/x
  3. Step 3: Cross multiply
    131,403.39x = 197,136.05 × 42,650.07
  4. Step 4: Simplify right side
    131,403.39x = 8,407,866,332.02
  5. Step 5: Solve for x
    x = 8,407,866,332.02/131,403.39
  6. Step 6: Final answer
    x = 63,985.16

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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.