Home / 154,017.90-231,023.61-70,911.90

Finding the Fourth Proportional to 154,017.90, 231,023.61 and 70,911.90

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Solution

The fourth proportional to 154,017.90, 231,023.61 and 70,911.90 is: 106,366.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,017.90 : 231,023.61 = 70,911.90 : x
  2. Step 2: Convert to fraction form
    154,017.90/231,023.61 = 70,911.90/x
  3. Step 3: Cross multiply
    154,017.90x = 231,023.61 × 70,911.90
  4. Step 4: Simplify right side
    154,017.90x = 16,382,323,129.96
  5. Step 5: Solve for x
    x = 16,382,323,129.96/154,017.90
  6. Step 6: Final answer
    x = 106,366.36

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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.