Home / 155,870.71-233,383.75-80,833.50

Finding the Fourth Proportional to 155,870.71, 233,383.75 and 80,833.50

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Solution

The fourth proportional to 155,870.71, 233,383.75 and 80,833.50 is: 121,031.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,870.71 : 233,383.75 = 80,833.50 : x
  2. Step 2: Convert to fraction form
    155,870.71/233,383.75 = 80,833.50/x
  3. Step 3: Cross multiply
    155,870.71x = 233,383.75 × 80,833.50
  4. Step 4: Simplify right side
    155,870.71x = 18,865,225,153.54
  5. Step 5: Solve for x
    x = 18,865,225,153.54/155,870.71
  6. Step 6: Final answer
    x = 121,031.24

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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.