Home / 98,919.84-136,510.48-54,208.16

Finding the Fourth Proportional to 98,919.84, 136,510.48 and 54,208.16

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Solution

The fourth proportional to 98,919.84, 136,510.48 and 54,208.16 is: 74,807.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,919.84 : 136,510.48 = 54,208.16 : x
  2. Step 2: Convert to fraction form
    98,919.84/136,510.48 = 54,208.16/x
  3. Step 3: Cross multiply
    98,919.84x = 136,510.48 × 54,208.16
  4. Step 4: Simplify right side
    98,919.84x = 7,399,981,941.52
  5. Step 5: Solve for x
    x = 7,399,981,941.52/98,919.84
  6. Step 6: Final answer
    x = 74,807.86

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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.