Home / 142,595.13-213,966.54-72,474.51

Finding the Fourth Proportional to 142,595.13, 213,966.54 and 72,474.51

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Solution

The fourth proportional to 142,595.13, 213,966.54 and 72,474.51 is: 108,749.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,595.13 : 213,966.54 = 72,474.51 : x
  2. Step 2: Convert to fraction form
    142,595.13/213,966.54 = 72,474.51/x
  3. Step 3: Cross multiply
    142,595.13x = 213,966.54 × 72,474.51
  4. Step 4: Simplify right side
    142,595.13x = 15,507,120,142.90
  5. Step 5: Solve for x
    x = 15,507,120,142.90/142,595.13
  6. Step 6: Final answer
    x = 108,749.30

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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.