Home / 136,195,394.80-204,293,092.20-85,135,068.40

Finding the Fourth Proportional to 136,195,394.80, 204,293,092.20 and 85,135,068.40

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Solution

The fourth proportional to 136,195,394.80, 204,293,092.20 and 85,135,068.40 is: 127,702,602.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,195,394.80 : 204,293,092.20 = 85,135,068.40 : x
  2. Step 2: Convert to fraction form
    136,195,394.80/204,293,092.20 = 85,135,068.40/x
  3. Step 3: Cross multiply
    136,195,394.80x = 204,293,092.20 × 85,135,068.40
  4. Step 4: Simplify right side
    136,195,394.80x = 17,392,506,378,094,506
  5. Step 5: Solve for x
    x = 17,392,506,378,094,506/136,195,394.80
  6. Step 6: Final answer
    x = 127,702,602.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.