Home / 153,689.32-230,421.93-103,645.09

Finding the Fourth Proportional to 153,689.32, 230,421.93 and 103,645.09

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Solution

The fourth proportional to 153,689.32, 230,421.93 and 103,645.09 is: 155,392.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,689.32 : 230,421.93 = 103,645.09 : x
  2. Step 2: Convert to fraction form
    153,689.32/230,421.93 = 103,645.09/x
  3. Step 3: Cross multiply
    153,689.32x = 230,421.93 × 103,645.09
  4. Step 4: Simplify right side
    153,689.32x = 23,882,101,672.82
  5. Step 5: Solve for x
    x = 23,882,101,672.82/153,689.32
  6. Step 6: Final answer
    x = 155,392.07

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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.