Home / 163,537.20-245,313.90-84,805.20

Finding the Fourth Proportional to 163,537.20, 245,313.90 and 84,805.20

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Solution

The fourth proportional to 163,537.20, 245,313.90 and 84,805.20 is: 127,212.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,537.20 : 245,313.90 = 84,805.20 : x
  2. Step 2: Convert to fraction form
    163,537.20/245,313.90 = 84,805.20/x
  3. Step 3: Cross multiply
    163,537.20x = 245,313.90 × 84,805.20
  4. Step 4: Simplify right side
    163,537.20x = 20,803,894,352.28
  5. Step 5: Solve for x
    x = 20,803,894,352.28/163,537.20
  6. Step 6: Final answer
    x = 127,212.00

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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.