Home / 156,964.09-235,314.75-72,784.33

Finding the Fourth Proportional to 156,964.09, 235,314.75 and 72,784.33

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Solution

The fourth proportional to 156,964.09, 235,314.75 and 72,784.33 is: 109,115.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,964.09 : 235,314.75 = 72,784.33 : x
  2. Step 2: Convert to fraction form
    156,964.09/235,314.75 = 72,784.33/x
  3. Step 3: Cross multiply
    156,964.09x = 235,314.75 × 72,784.33
  4. Step 4: Simplify right side
    156,964.09x = 17,127,226,417.87
  5. Step 5: Solve for x
    x = 17,127,226,417.87/156,964.09
  6. Step 6: Final answer
    x = 109,115.57

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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.