Home / 156,741.30-235,113-38,412.65

Finding the Fourth Proportional to 156,741.30, 235,113 and 38,412.65

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Solution

The fourth proportional to 156,741.30, 235,113 and 38,412.65 is: 57,619.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,741.30 : 235,113 = 38,412.65 : x
  2. Step 2: Convert to fraction form
    156,741.30/235,113 = 38,412.65/x
  3. Step 3: Cross multiply
    156,741.30x = 235,113 × 38,412.65
  4. Step 4: Simplify right side
    156,741.30x = 9,031,313,379.45
  5. Step 5: Solve for x
    x = 9,031,313,379.45/156,741.30
  6. Step 6: Final answer
    x = 57,619.23

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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.