Home / 187,915.17-259,322.81-103,033.65

Finding the Fourth Proportional to 187,915.17, 259,322.81 and 103,033.65

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Solution

The fourth proportional to 187,915.17, 259,322.81 and 103,033.65 is: 142,186.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,915.17 : 259,322.81 = 103,033.65 : x
  2. Step 2: Convert to fraction form
    187,915.17/259,322.81 = 103,033.65/x
  3. Step 3: Cross multiply
    187,915.17x = 259,322.81 × 103,033.65
  4. Step 4: Simplify right side
    187,915.17x = 26,718,975,127.39
  5. Step 5: Solve for x
    x = 26,718,975,127.39/187,915.17
  6. Step 6: Final answer
    x = 142,186.37

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1.5x scale

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.