Home / 136,009.66-187,715.60-113,312.66

Finding the Fourth Proportional to 136,009.66, 187,715.60 and 113,312.66

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Solution

The fourth proportional to 136,009.66, 187,715.60 and 113,312.66 is: 156,390.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,009.66 : 187,715.60 = 113,312.66 : x
  2. Step 2: Convert to fraction form
    136,009.66/187,715.60 = 113,312.66/x
  3. Step 3: Cross multiply
    136,009.66x = 187,715.60 × 113,312.66
  4. Step 4: Simplify right side
    136,009.66x = 21,270,553,959.50
  5. Step 5: Solve for x
    x = 21,270,553,959.50/136,009.66
  6. Step 6: Final answer
    x = 156,390.02

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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.