Home / 142,738.10-214,107.15-42,913.70

Finding the Fourth Proportional to 142,738.10, 214,107.15 and 42,913.70

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Solution

The fourth proportional to 142,738.10, 214,107.15 and 42,913.70 is: 64,370.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,738.10 : 214,107.15 = 42,913.70 : x
  2. Step 2: Convert to fraction form
    142,738.10/214,107.15 = 42,913.70/x
  3. Step 3: Cross multiply
    142,738.10x = 214,107.15 × 42,913.70
  4. Step 4: Simplify right side
    142,738.10x = 9,188,130,002.96
  5. Step 5: Solve for x
    x = 9,188,130,002.96/142,738.10
  6. Step 6: Final answer
    x = 64,370.55

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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.