Home / 137,237.40-205,856.10-112,305.60

Finding the Fourth Proportional to 137,237.40, 205,856.10 and 112,305.60

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Solution

The fourth proportional to 137,237.40, 205,856.10 and 112,305.60 is: 168,458.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,237.40 : 205,856.10 = 112,305.60 : x
  2. Step 2: Convert to fraction form
    137,237.40/205,856.10 = 112,305.60/x
  3. Step 3: Cross multiply
    137,237.40x = 205,856.10 × 112,305.60
  4. Step 4: Simplify right side
    137,237.40x = 23,118,792,824.16
  5. Step 5: Solve for x
    x = 23,118,792,824.16/137,237.40
  6. Step 6: Final answer
    x = 168,458.40

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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.