Home / 133,117.06-183,696.72-72,686.62

Finding the Fourth Proportional to 133,117.06, 183,696.72 and 72,686.62

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Solution

The fourth proportional to 133,117.06, 183,696.72 and 72,686.62 is: 100,304.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,117.06 : 183,696.72 = 72,686.62 : x
  2. Step 2: Convert to fraction form
    133,117.06/183,696.72 = 72,686.62/x
  3. Step 3: Cross multiply
    133,117.06x = 183,696.72 × 72,686.62
  4. Step 4: Simplify right side
    133,117.06x = 13,352,293,681.89
  5. Step 5: Solve for x
    x = 13,352,293,681.89/133,117.06
  6. Step 6: Final answer
    x = 100,304.90

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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.