Home / 136,810,874.59-188,799,188.99-74,087,080.69

Finding the Fourth Proportional to 136,810,874.59, 188,799,188.99 and 74,087,080.69

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Solution

The fourth proportional to 136,810,874.59, 188,799,188.99 and 74,087,080.69 is: 102,240,269.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,810,874.59 : 188,799,188.99 = 74,087,080.69 : x
  2. Step 2: Convert to fraction form
    136,810,874.59/188,799,188.99 = 74,087,080.69/x
  3. Step 3: Cross multiply
    136,810,874.59x = 188,799,188.99 × 74,087,080.69
  4. Step 4: Simplify right side
    136,810,874.59x = 13,987,580,748,908,690
  5. Step 5: Solve for x
    x = 13,987,580,748,908,690/136,810,874.59
  6. Step 6: Final answer
    x = 102,240,269.94

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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.