Home / 136,068.36-187,776.57-74,817.12

Finding the Fourth Proportional to 136,068.36, 187,776.57 and 74,817.12

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Solution

The fourth proportional to 136,068.36, 187,776.57 and 74,817.12 is: 103,248.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,068.36 : 187,776.57 = 74,817.12 : x
  2. Step 2: Convert to fraction form
    136,068.36/187,776.57 = 74,817.12/x
  3. Step 3: Cross multiply
    136,068.36x = 187,776.57 × 74,817.12
  4. Step 4: Simplify right side
    136,068.36x = 14,048,902,170.88
  5. Step 5: Solve for x
    x = 14,048,902,170.88/136,068.36
  6. Step 6: Final answer
    x = 103,248.85

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1.5x scale

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.