Home / 122,376.64-183,557.44-72,772.40

Finding the Fourth Proportional to 122,376.64, 183,557.44 and 72,772.40

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Solution

The fourth proportional to 122,376.64, 183,557.44 and 72,772.40 is: 109,154.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,376.64 : 183,557.44 = 72,772.40 : x
  2. Step 2: Convert to fraction form
    122,376.64/183,557.44 = 72,772.40/x
  3. Step 3: Cross multiply
    122,376.64x = 183,557.44 × 72,772.40
  4. Step 4: Simplify right side
    122,376.64x = 13,357,915,446.66
  5. Step 5: Solve for x
    x = 13,357,915,446.66/122,376.64
  6. Step 6: Final answer
    x = 109,154.13

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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.