Home / 157,261.70-235,707.77-72,843.50

Finding the Fourth Proportional to 157,261.70, 235,707.77 and 72,843.50

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Solution

The fourth proportional to 157,261.70, 235,707.77 and 72,843.50 is: 109,179.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,261.70 : 235,707.77 = 72,843.50 : x
  2. Step 2: Convert to fraction form
    157,261.70/235,707.77 = 72,843.50/x
  3. Step 3: Cross multiply
    157,261.70x = 235,707.77 × 72,843.50
  4. Step 4: Simplify right side
    157,261.70x = 17,169,779,715.37
  5. Step 5: Solve for x
    x = 17,169,779,715.37/157,261.70
  6. Step 6: Final answer
    x = 109,179.66

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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.