Home / 147,558.48-203,630.28-80,490

Finding the Fourth Proportional to 147,558.48, 203,630.28 and 80,490

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Solution

The fourth proportional to 147,558.48, 203,630.28 and 80,490 is: 111,075.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,558.48 : 203,630.28 = 80,490 : x
  2. Step 2: Convert to fraction form
    147,558.48/203,630.28 = 80,490/x
  3. Step 3: Cross multiply
    147,558.48x = 203,630.28 × 80,490
  4. Step 4: Simplify right side
    147,558.48x = 16,390,201,237.20
  5. Step 5: Solve for x
    x = 16,390,201,237.20/147,558.48
  6. Step 6: Final answer
    x = 111,075.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.