Home / 155,427.80-233,141.70-121,602.20

Finding the Fourth Proportional to 155,427.80, 233,141.70 and 121,602.20

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Solution

The fourth proportional to 155,427.80, 233,141.70 and 121,602.20 is: 182,403.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,427.80 : 233,141.70 = 121,602.20 : x
  2. Step 2: Convert to fraction form
    155,427.80/233,141.70 = 121,602.20/x
  3. Step 3: Cross multiply
    155,427.80x = 233,141.70 × 121,602.20
  4. Step 4: Simplify right side
    155,427.80x = 28,350,543,631.74
  5. Step 5: Solve for x
    x = 28,350,543,631.74/155,427.80
  6. Step 6: Final answer
    x = 182,403.30

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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.