Home / 155,938.40-234,022.80-103,330.40

Finding the Fourth Proportional to 155,938.40, 234,022.80 and 103,330.40

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Solution

The fourth proportional to 155,938.40, 234,022.80 and 103,330.40 is: 155,071.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,938.40 : 234,022.80 = 103,330.40 : x
  2. Step 2: Convert to fraction form
    155,938.40/234,022.80 = 103,330.40/x
  3. Step 3: Cross multiply
    155,938.40x = 234,022.80 × 103,330.40
  4. Step 4: Simplify right side
    155,938.40x = 24,181,669,533.12
  5. Step 5: Solve for x
    x = 24,181,669,533.12/155,938.40
  6. Step 6: Final answer
    x = 155,071.94

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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.