Home / 138,025.65-207,038.23-43,263.11

Finding the Fourth Proportional to 138,025.65, 207,038.23 and 43,263.11

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Solution

The fourth proportional to 138,025.65, 207,038.23 and 43,263.11 is: 64,894.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,025.65 : 207,038.23 = 43,263.11 : x
  2. Step 2: Convert to fraction form
    138,025.65/207,038.23 = 43,263.11/x
  3. Step 3: Cross multiply
    138,025.65x = 207,038.23 × 43,263.11
  4. Step 4: Simplify right side
    138,025.65x = 8,957,118,128.13
  5. Step 5: Solve for x
    x = 8,957,118,128.13/138,025.65
  6. Step 6: Final answer
    x = 64,894.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.