Home / 121,987.15-183,033.06-47,159.85

Finding the Fourth Proportional to 121,987.15, 183,033.06 and 47,159.85

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Solution

The fourth proportional to 121,987.15, 183,033.06 and 47,159.85 is: 70,760.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,987.15 : 183,033.06 = 47,159.85 : x
  2. Step 2: Convert to fraction form
    121,987.15/183,033.06 = 47,159.85/x
  3. Step 3: Cross multiply
    121,987.15x = 183,033.06 × 47,159.85
  4. Step 4: Simplify right side
    121,987.15x = 8,631,811,772.54
  5. Step 5: Solve for x
    x = 8,631,811,772.54/121,987.15
  6. Step 6: Final answer
    x = 70,760.01

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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.