Home / 136,078.60-204,312.30-103,030.60

Finding the Fourth Proportional to 136,078.60, 204,312.30 and 103,030.60

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Solution

The fourth proportional to 136,078.60, 204,312.30 and 103,030.60 is: 154,693.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,078.60 : 204,312.30 = 103,030.60 : x
  2. Step 2: Convert to fraction form
    136,078.60/204,312.30 = 103,030.60/x
  3. Step 3: Cross multiply
    136,078.60x = 204,312.30 × 103,030.60
  4. Step 4: Simplify right side
    136,078.60x = 21,050,418,856.38
  5. Step 5: Solve for x
    x = 21,050,418,856.38/136,078.60
  6. Step 6: Final answer
    x = 154,693.09

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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.