Home / 157,208.30-235,602.11-77,123.60

Finding the Fourth Proportional to 157,208.30, 235,602.11 and 77,123.60

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Solution

The fourth proportional to 157,208.30, 235,602.11 and 77,123.60 is: 115,582.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,208.30 : 235,602.11 = 77,123.60 : x
  2. Step 2: Convert to fraction form
    157,208.30/235,602.11 = 77,123.60/x
  3. Step 3: Cross multiply
    157,208.30x = 235,602.11 × 77,123.60
  4. Step 4: Simplify right side
    157,208.30x = 18,170,481,905.59
  5. Step 5: Solve for x
    x = 18,170,481,905.59/157,208.30
  6. Step 6: Final answer
    x = 115,582.21

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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.