Home / 142,225.96-213,455.60-72,125.32

Finding the Fourth Proportional to 142,225.96, 213,455.60 and 72,125.32

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Solution

The fourth proportional to 142,225.96, 213,455.60 and 72,125.32 is: 108,247.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,225.96 : 213,455.60 = 72,125.32 : x
  2. Step 2: Convert to fraction form
    142,225.96/213,455.60 = 72,125.32/x
  3. Step 3: Cross multiply
    142,225.96x = 213,455.60 × 72,125.32
  4. Step 4: Simplify right side
    142,225.96x = 15,395,553,455.79
  5. Step 5: Solve for x
    x = 15,395,553,455.79/142,225.96
  6. Step 6: Final answer
    x = 108,247.14

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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.