Home / 145,190.18-200,355.96-80,663.58

Finding the Fourth Proportional to 145,190.18, 200,355.96 and 80,663.58

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Solution

The fourth proportional to 145,190.18, 200,355.96 and 80,663.58 is: 111,312.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,190.18 : 200,355.96 = 80,663.58 : x
  2. Step 2: Convert to fraction form
    145,190.18/200,355.96 = 80,663.58/x
  3. Step 3: Cross multiply
    145,190.18x = 200,355.96 × 80,663.58
  4. Step 4: Simplify right side
    145,190.18x = 16,161,429,007.94
  5. Step 5: Solve for x
    x = 16,161,429,007.94/145,190.18
  6. Step 6: Final answer
    x = 111,312.14

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1.5x scale

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.