Home / 145,883.10-217,290.44-139,057.50

Finding the Fourth Proportional to 145,883.10, 217,290.44 and 139,057.50

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Solution

The fourth proportional to 145,883.10, 217,290.44 and 139,057.50 is: 207,123.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,883.10 : 217,290.44 = 139,057.50 : x
  2. Step 2: Convert to fraction form
    145,883.10/217,290.44 = 139,057.50/x
  3. Step 3: Cross multiply
    145,883.10x = 217,290.44 × 139,057.50
  4. Step 4: Simplify right side
    145,883.10x = 30,215,864,665.01
  5. Step 5: Solve for x
    x = 30,215,864,665.01/145,883.10
  6. Step 6: Final answer
    x = 207,123.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.