Home / 145,191.18-200,357.34-80,664.58

Finding the Fourth Proportional to 145,191.18, 200,357.34 and 80,664.58

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Solution

The fourth proportional to 145,191.18, 200,357.34 and 80,664.58 is: 111,313.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,191.18 : 200,357.34 = 80,664.58 : x
  2. Step 2: Convert to fraction form
    145,191.18/200,357.34 = 80,664.58/x
  3. Step 3: Cross multiply
    145,191.18x = 200,357.34 × 80,664.58
  4. Step 4: Simplify right side
    145,191.18x = 16,161,740,681.02
  5. Step 5: Solve for x
    x = 16,161,740,681.02/145,191.18
  6. Step 6: Final answer
    x = 111,313.52

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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.