Home / 90,701.10-136,051.65-76,266.90

Finding the Fourth Proportional to 90,701.10, 136,051.65 and 76,266.90

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Solution

The fourth proportional to 90,701.10, 136,051.65 and 76,266.90 is: 114,400.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,701.10 : 136,051.65 = 76,266.90 : x
  2. Step 2: Convert to fraction form
    90,701.10/136,051.65 = 76,266.90/x
  3. Step 3: Cross multiply
    90,701.10x = 136,051.65 × 76,266.90
  4. Step 4: Simplify right side
    90,701.10x = 10,376,237,585.39
  5. Step 5: Solve for x
    x = 10,376,237,585.39/90,701.10
  6. Step 6: Final answer
    x = 114,400.35

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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.