Home / 136,856,546.72-188,861,969.04-81,852,402.08

Finding the Fourth Proportional to 136,856,546.72, 188,861,969.04 and 81,852,402.08

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Solution

The fourth proportional to 136,856,546.72, 188,861,969.04 and 81,852,402.08 is: 112,956,275.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,856,546.72 : 188,861,969.04 = 81,852,402.08 : x
  2. Step 2: Convert to fraction form
    136,856,546.72/188,861,969.04 = 81,852,402.08/x
  3. Step 3: Cross multiply
    136,856,546.72x = 188,861,969.04 × 81,852,402.08
  4. Step 4: Simplify right side
    136,856,546.72x = 15,458,805,827,482,590
  5. Step 5: Solve for x
    x = 15,458,805,827,482,590/136,856,546.72
  6. Step 6: Final answer
    x = 112,956,275.74

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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.