Home / 100,025.72-138,070.26-57,601.16

Finding the Fourth Proportional to 100,025.72, 138,070.26 and 57,601.16

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Solution

The fourth proportional to 100,025.72, 138,070.26 and 57,601.16 is: 79,509.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,025.72 : 138,070.26 = 57,601.16 : x
  2. Step 2: Convert to fraction form
    100,025.72/138,070.26 = 57,601.16/x
  3. Step 3: Cross multiply
    100,025.72x = 138,070.26 × 57,601.16
  4. Step 4: Simplify right side
    100,025.72x = 7,953,007,137.50
  5. Step 5: Solve for x
    x = 7,953,007,137.50/100,025.72
  6. Step 6: Final answer
    x = 79,509.62

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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.