Home / 157,283.12-235,834.71-72,999.88

Finding the Fourth Proportional to 157,283.12, 235,834.71 and 72,999.88

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Solution

The fourth proportional to 157,283.12, 235,834.71 and 72,999.88 is: 109,458.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,283.12 : 235,834.71 = 72,999.88 : x
  2. Step 2: Convert to fraction form
    157,283.12/235,834.71 = 72,999.88/x
  3. Step 3: Cross multiply
    157,283.12x = 235,834.71 × 72,999.88
  4. Step 4: Simplify right side
    157,283.12x = 17,215,905,529.83
  5. Step 5: Solve for x
    x = 17,215,905,529.83/157,283.12
  6. Step 6: Final answer
    x = 109,458.06

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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.