Home / 142,405.18-213,482.06-53,720.97

Finding the Fourth Proportional to 142,405.18, 213,482.06 and 53,720.97

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Solution

The fourth proportional to 142,405.18, 213,482.06 and 53,720.97 is: 80,534.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,405.18 : 213,482.06 = 53,720.97 : x
  2. Step 2: Convert to fraction form
    142,405.18/213,482.06 = 53,720.97/x
  3. Step 3: Cross multiply
    142,405.18x = 213,482.06 × 53,720.97
  4. Step 4: Simplify right side
    142,405.18x = 11,468,462,775.27
  5. Step 5: Solve for x
    x = 11,468,462,775.27/142,405.18
  6. Step 6: Final answer
    x = 80,534.03

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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.