Home / 142,254.16-213,515.18-72,183.76

Finding the Fourth Proportional to 142,254.16, 213,515.18 and 72,183.76

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Solution

The fourth proportional to 142,254.16, 213,515.18 and 72,183.76 is: 108,343.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,254.16 : 213,515.18 = 72,183.76 : x
  2. Step 2: Convert to fraction form
    142,254.16/213,515.18 = 72,183.76/x
  3. Step 3: Cross multiply
    142,254.16x = 213,515.18 × 72,183.76
  4. Step 4: Simplify right side
    142,254.16x = 15,412,328,509.48
  5. Step 5: Solve for x
    x = 15,412,328,509.48/142,254.16
  6. Step 6: Final answer
    x = 108,343.60

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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.