Home / 91,323.10-136,984.65-87,823.90

Finding the Fourth Proportional to 91,323.10, 136,984.65 and 87,823.90

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Solution

The fourth proportional to 91,323.10, 136,984.65 and 87,823.90 is: 131,735.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,323.10 : 136,984.65 = 87,823.90 : x
  2. Step 2: Convert to fraction form
    91,323.10/136,984.65 = 87,823.90/x
  3. Step 3: Cross multiply
    91,323.10x = 136,984.65 × 87,823.90
  4. Step 4: Simplify right side
    91,323.10x = 12,030,526,203.14
  5. Step 5: Solve for x
    x = 12,030,526,203.14/91,323.10
  6. Step 6: Final answer
    x = 131,735.85

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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.