Home / 155,638.80-233,567.55-66,955.95

Finding the Fourth Proportional to 155,638.80, 233,567.55 and 66,955.95

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Solution

The fourth proportional to 155,638.80, 233,567.55 and 66,955.95 is: 100,480.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,638.80 : 233,567.55 = 66,955.95 : x
  2. Step 2: Convert to fraction form
    155,638.80/233,567.55 = 66,955.95/x
  3. Step 3: Cross multiply
    155,638.80x = 233,567.55 × 66,955.95
  4. Step 4: Simplify right side
    155,638.80x = 15,638,737,199.42
  5. Step 5: Solve for x
    x = 15,638,737,199.42/155,638.80
  6. Step 6: Final answer
    x = 100,480.97

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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.