Home / 125,815.16-173,629.08-72,110.36

Finding the Fourth Proportional to 125,815.16, 173,629.08 and 72,110.36

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Solution

The fourth proportional to 125,815.16, 173,629.08 and 72,110.36 is: 99,514.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,815.16 : 173,629.08 = 72,110.36 : x
  2. Step 2: Convert to fraction form
    125,815.16/173,629.08 = 72,110.36/x
  3. Step 3: Cross multiply
    125,815.16x = 173,629.08 × 72,110.36
  4. Step 4: Simplify right side
    125,815.16x = 12,520,455,465.27
  5. Step 5: Solve for x
    x = 12,520,455,465.27/125,815.16
  6. Step 6: Final answer
    x = 99,514.68

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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.