Home / 156,988.60-235,482.90-90,558.48

Finding the Fourth Proportional to 156,988.60, 235,482.90 and 90,558.48

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Solution

The fourth proportional to 156,988.60, 235,482.90 and 90,558.48 is: 135,837.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,988.60 : 235,482.90 = 90,558.48 : x
  2. Step 2: Convert to fraction form
    156,988.60/235,482.90 = 90,558.48/x
  3. Step 3: Cross multiply
    156,988.60x = 235,482.90 × 90,558.48
  4. Step 4: Simplify right side
    156,988.60x = 21,324,973,489.99
  5. Step 5: Solve for x
    x = 21,324,973,489.99/156,988.60
  6. Step 6: Final answer
    x = 135,837.72

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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.