Home / 136,157.02-187,868.88-79,557.46

Finding the Fourth Proportional to 136,157.02, 187,868.88 and 79,557.46

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Solution

The fourth proportional to 136,157.02, 187,868.88 and 79,557.46 is: 109,773.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,157.02 : 187,868.88 = 79,557.46 : x
  2. Step 2: Convert to fraction form
    136,157.02/187,868.88 = 79,557.46/x
  3. Step 3: Cross multiply
    136,157.02x = 187,868.88 × 79,557.46
  4. Step 4: Simplify right side
    136,157.02x = 14,946,370,905.84
  5. Step 5: Solve for x
    x = 14,946,370,905.84/136,157.02
  6. Step 6: Final answer
    x = 109,773.05

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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.