Home / 136,531.79-204,837.99-70,018.50

Finding the Fourth Proportional to 136,531.79, 204,837.99 and 70,018.50

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Solution

The fourth proportional to 136,531.79, 204,837.99 and 70,018.50 is: 105,048.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,531.79 : 204,837.99 = 70,018.50 : x
  2. Step 2: Convert to fraction form
    136,531.79/204,837.99 = 70,018.50/x
  3. Step 3: Cross multiply
    136,531.79x = 204,837.99 × 70,018.50
  4. Step 4: Simplify right side
    136,531.79x = 14,342,448,802.82
  5. Step 5: Solve for x
    x = 14,342,448,802.82/136,531.79
  6. Step 6: Final answer
    x = 105,048.42

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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.