Home / 122,371.21-183,534.90-77,865.76

Finding the Fourth Proportional to 122,371.21, 183,534.90 and 77,865.76

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Solution

The fourth proportional to 122,371.21, 183,534.90 and 77,865.76 is: 116,784.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,371.21 : 183,534.90 = 77,865.76 : x
  2. Step 2: Convert to fraction form
    122,371.21/183,534.90 = 77,865.76/x
  3. Step 3: Cross multiply
    122,371.21x = 183,534.90 × 77,865.76
  4. Step 4: Simplify right side
    122,371.21x = 14,291,084,475.02
  5. Step 5: Solve for x
    x = 14,291,084,475.02/122,371.21
  6. Step 6: Final answer
    x = 116,784.70

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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.