Home / 125,514.10-188,271.15-42,406.90

Finding the Fourth Proportional to 125,514.10, 188,271.15 and 42,406.90

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Solution

The fourth proportional to 125,514.10, 188,271.15 and 42,406.90 is: 63,610.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,514.10 : 188,271.15 = 42,406.90 : x
  2. Step 2: Convert to fraction form
    125,514.10/188,271.15 = 42,406.90/x
  3. Step 3: Cross multiply
    125,514.10x = 188,271.15 × 42,406.90
  4. Step 4: Simplify right side
    125,514.10x = 7,983,995,830.94
  5. Step 5: Solve for x
    x = 7,983,995,830.94/125,514.10
  6. Step 6: Final answer
    x = 63,610.35

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1.5x scale

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.