Home / 157,555.88-235,329.18-142,539.86

Finding the Fourth Proportional to 157,555.88, 235,329.18 and 142,539.86

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Solution

The fourth proportional to 157,555.88, 235,329.18 and 142,539.86 is: 212,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,555.88 : 235,329.18 = 142,539.86 : x
  2. Step 2: Convert to fraction form
    157,555.88/235,329.18 = 142,539.86/x
  3. Step 3: Cross multiply
    157,555.88x = 235,329.18 × 142,539.86
  4. Step 4: Simplify right side
    157,555.88x = 33,543,787,194.47
  5. Step 5: Solve for x
    x = 33,543,787,194.47/157,555.88
  6. Step 6: Final answer
    x = 212,900.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.