Home / 136,140.75-204,211.13-42,646.50

Finding the Fourth Proportional to 136,140.75, 204,211.13 and 42,646.50

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Solution

The fourth proportional to 136,140.75, 204,211.13 and 42,646.50 is: 63,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,140.75 : 204,211.13 = 42,646.50 : x
  2. Step 2: Convert to fraction form
    136,140.75/204,211.13 = 42,646.50/x
  3. Step 3: Cross multiply
    136,140.75x = 204,211.13 × 42,646.50
  4. Step 4: Simplify right side
    136,140.75x = 8,708,889,742.31
  5. Step 5: Solve for x
    x = 8,708,889,742.31/136,140.75
  6. Step 6: Final answer
    x = 63,969.75

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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.