Home / 156,688.40-234,935.40-90,095.60

Finding the Fourth Proportional to 156,688.40, 234,935.40 and 90,095.60

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Solution

The fourth proportional to 156,688.40, 234,935.40 and 90,095.60 is: 135,087.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,688.40 : 234,935.40 = 90,095.60 : x
  2. Step 2: Convert to fraction form
    156,688.40/234,935.40 = 90,095.60/x
  3. Step 3: Cross multiply
    156,688.40x = 234,935.40 × 90,095.60
  4. Step 4: Simplify right side
    156,688.40x = 21,166,645,824.24
  5. Step 5: Solve for x
    x = 21,166,645,824.24/156,688.40
  6. Step 6: Final answer
    x = 135,087.51

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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.