Home / 136,211.10-204,316.65-128,435.10

Finding the Fourth Proportional to 136,211.10, 204,316.65 and 128,435.10

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Solution

The fourth proportional to 136,211.10, 204,316.65 and 128,435.10 is: 192,652.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,211.10 : 204,316.65 = 128,435.10 : x
  2. Step 2: Convert to fraction form
    136,211.10/204,316.65 = 128,435.10/x
  3. Step 3: Cross multiply
    136,211.10x = 204,316.65 × 128,435.10
  4. Step 4: Simplify right side
    136,211.10x = 26,241,429,374.42
  5. Step 5: Solve for x
    x = 26,241,429,374.42/136,211.10
  6. Step 6: Final answer
    x = 192,652.65

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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.