Home / 166,078.60-249,117.90-77,505.10

Finding the Fourth Proportional to 166,078.60, 249,117.90 and 77,505.10

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Solution

The fourth proportional to 166,078.60, 249,117.90 and 77,505.10 is: 116,257.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,078.60 : 249,117.90 = 77,505.10 : x
  2. Step 2: Convert to fraction form
    166,078.60/249,117.90 = 77,505.10/x
  3. Step 3: Cross multiply
    166,078.60x = 249,117.90 × 77,505.10
  4. Step 4: Simplify right side
    166,078.60x = 19,307,907,751.29
  5. Step 5: Solve for x
    x = 19,307,907,751.29/166,078.60
  6. Step 6: Final answer
    x = 116,257.65

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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.