Home / 145,167.63-200,280.74-91,457.43

Finding the Fourth Proportional to 145,167.63, 200,280.74 and 91,457.43

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Solution

The fourth proportional to 145,167.63, 200,280.74 and 91,457.43 is: 126,179.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,167.63 : 200,280.74 = 91,457.43 : x
  2. Step 2: Convert to fraction form
    145,167.63/200,280.74 = 91,457.43/x
  3. Step 3: Cross multiply
    145,167.63x = 200,280.74 × 91,457.43
  4. Step 4: Simplify right side
    145,167.63x = 18,317,161,301.61
  5. Step 5: Solve for x
    x = 18,317,161,301.61/145,167.63
  6. Step 6: Final answer
    x = 126,179.38

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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.