Home / 136,154.02-187,864.74-79,554.46

Finding the Fourth Proportional to 136,154.02, 187,864.74 and 79,554.46

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Solution

The fourth proportional to 136,154.02, 187,864.74 and 79,554.46 is: 109,768.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,154.02 : 187,864.74 = 79,554.46 : x
  2. Step 2: Convert to fraction form
    136,154.02/187,864.74 = 79,554.46/x
  3. Step 3: Cross multiply
    136,154.02x = 187,864.74 × 79,554.46
  4. Step 4: Simplify right side
    136,154.02x = 14,945,477,943.74
  5. Step 5: Solve for x
    x = 14,945,477,943.74/136,154.02
  6. Step 6: Final answer
    x = 109,768.91

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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.