Home / 136,092.24-187,746.12-79,470

Finding the Fourth Proportional to 136,092.24, 187,746.12 and 79,470

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Solution

The fourth proportional to 136,092.24, 187,746.12 and 79,470 is: 109,632.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,092.24 : 187,746.12 = 79,470 : x
  2. Step 2: Convert to fraction form
    136,092.24/187,746.12 = 79,470/x
  3. Step 3: Cross multiply
    136,092.24x = 187,746.12 × 79,470
  4. Step 4: Simplify right side
    136,092.24x = 14,920,184,156.40
  5. Step 5: Solve for x
    x = 14,920,184,156.40/136,092.24
  6. Step 6: Final answer
    x = 109,632.88

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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.