Home / 102,890.18-155,106.43-96,031.88

Finding the Fourth Proportional to 102,890.18, 155,106.43 and 96,031.88

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Solution

The fourth proportional to 102,890.18, 155,106.43 and 96,031.88 is: 144,767.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,890.18 : 155,106.43 = 96,031.88 : x
  2. Step 2: Convert to fraction form
    102,890.18/155,106.43 = 96,031.88/x
  3. Step 3: Cross multiply
    102,890.18x = 155,106.43 × 96,031.88
  4. Step 4: Simplify right side
    102,890.18x = 14,895,161,639.03
  5. Step 5: Solve for x
    x = 14,895,161,639.03/102,890.18
  6. Step 6: Final answer
    x = 144,767.57

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.