Home / 162,617.51-243,822.23-78,209.57

Finding the Fourth Proportional to 162,617.51, 243,822.23 and 78,209.57

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Solution

The fourth proportional to 162,617.51, 243,822.23 and 78,209.57 is: 117,264.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,617.51 : 243,822.23 = 78,209.57 : x
  2. Step 2: Convert to fraction form
    162,617.51/243,822.23 = 78,209.57/x
  3. Step 3: Cross multiply
    162,617.51x = 243,822.23 × 78,209.57
  4. Step 4: Simplify right side
    162,617.51x = 19,069,231,764.74
  5. Step 5: Solve for x
    x = 19,069,231,764.74/162,617.51
  6. Step 6: Final answer
    x = 117,264.32

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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.