Home / 90,790.93-136,207.66-89,284.74

Finding the Fourth Proportional to 90,790.93, 136,207.66 and 89,284.74

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Solution

The fourth proportional to 90,790.93, 136,207.66 and 89,284.74 is: 133,948.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,790.93 : 136,207.66 = 89,284.74 : x
  2. Step 2: Convert to fraction form
    90,790.93/136,207.66 = 89,284.74/x
  3. Step 3: Cross multiply
    90,790.93x = 136,207.66 × 89,284.74
  4. Step 4: Simplify right side
    90,790.93x = 12,161,265,509.11
  5. Step 5: Solve for x
    x = 12,161,265,509.11/90,790.93
  6. Step 6: Final answer
    x = 133,948.02

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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.