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Finding the Fourth Proportional to 124,804.80, 172,562.40 and 109,058.40

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Solution

The fourth proportional to 124,804.80, 172,562.40 and 109,058.40 is: 150,790.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,804.80 : 172,562.40 = 109,058.40 : x
  2. Step 2: Convert to fraction form
    124,804.80/172,562.40 = 109,058.40/x
  3. Step 3: Cross multiply
    124,804.80x = 172,562.40 × 109,058.40
  4. Step 4: Simplify right side
    124,804.80x = 18,819,379,244.16
  5. Step 5: Solve for x
    x = 18,819,379,244.16/124,804.80
  6. Step 6: Final answer
    x = 150,790.51

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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.