Home / 145,110.24-200,250.72-81,446.76

Finding the Fourth Proportional to 145,110.24, 200,250.72 and 81,446.76

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Solution

The fourth proportional to 145,110.24, 200,250.72 and 81,446.76 is: 112,395.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,110.24 : 200,250.72 = 81,446.76 : x
  2. Step 2: Convert to fraction form
    145,110.24/200,250.72 = 81,446.76/x
  3. Step 3: Cross multiply
    145,110.24x = 200,250.72 × 81,446.76
  4. Step 4: Simplify right side
    145,110.24x = 16,309,772,331.67
  5. Step 5: Solve for x
    x = 16,309,772,331.67/145,110.24
  6. Step 6: Final answer
    x = 112,395.74

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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.