Home / 215,257.81-297,051.15-124,617.61

Finding the Fourth Proportional to 215,257.81, 297,051.15 and 124,617.61

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Solution

The fourth proportional to 215,257.81, 297,051.15 and 124,617.61 is: 171,969.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,257.81 : 297,051.15 = 124,617.61 : x
  2. Step 2: Convert to fraction form
    215,257.81/297,051.15 = 124,617.61/x
  3. Step 3: Cross multiply
    215,257.81x = 297,051.15 × 124,617.61
  4. Step 4: Simplify right side
    215,257.81x = 37,017,803,737.66
  5. Step 5: Solve for x
    x = 37,017,803,737.66/215,257.81
  6. Step 6: Final answer
    x = 171,969.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.