Home / 90,699.21-136,119.66-62,814.69

Finding the Fourth Proportional to 90,699.21, 136,119.66 and 62,814.69

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Solution

The fourth proportional to 90,699.21, 136,119.66 and 62,814.69 is: 94,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,699.21 : 136,119.66 = 62,814.69 : x
  2. Step 2: Convert to fraction form
    90,699.21/136,119.66 = 62,814.69/x
  3. Step 3: Cross multiply
    90,699.21x = 136,119.66 × 62,814.69
  4. Step 4: Simplify right side
    90,699.21x = 8,550,314,245.81
  5. Step 5: Solve for x
    x = 8,550,314,245.81/90,699.21
  6. Step 6: Final answer
    x = 94,271.10

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1.5x scale

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.