Home / 145,887.02-201,324.12-78,819.02

Finding the Fourth Proportional to 145,887.02, 201,324.12 and 78,819.02

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Solution

The fourth proportional to 145,887.02, 201,324.12 and 78,819.02 is: 108,770.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,887.02 : 201,324.12 = 78,819.02 : x
  2. Step 2: Convert to fraction form
    145,887.02/201,324.12 = 78,819.02/x
  3. Step 3: Cross multiply
    145,887.02x = 201,324.12 × 78,819.02
  4. Step 4: Simplify right side
    145,887.02x = 15,868,169,840.76
  5. Step 5: Solve for x
    x = 15,868,169,840.76/145,887.02
  6. Step 6: Final answer
    x = 108,770.27

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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.