Home / 98,981.02-136,656.09-68,756.62

Finding the Fourth Proportional to 98,981.02, 136,656.09 and 68,756.62

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Solution

The fourth proportional to 98,981.02, 136,656.09 and 68,756.62 is: 94,927.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,981.02 : 136,656.09 = 68,756.62 : x
  2. Step 2: Convert to fraction form
    98,981.02/136,656.09 = 68,756.62/x
  3. Step 3: Cross multiply
    98,981.02x = 136,656.09 × 68,756.62
  4. Step 4: Simplify right side
    98,981.02x = 9,396,010,850.82
  5. Step 5: Solve for x
    x = 9,396,010,850.82/98,981.02
  6. Step 6: Final answer
    x = 94,927.40

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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.