Home / 166,401.95-249,602.31-77,606.10

Finding the Fourth Proportional to 166,401.95, 249,602.31 and 77,606.10

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Solution

The fourth proportional to 166,401.95, 249,602.31 and 77,606.10 is: 116,408.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,401.95 : 249,602.31 = 77,606.10 : x
  2. Step 2: Convert to fraction form
    166,401.95/249,602.31 = 77,606.10/x
  3. Step 3: Cross multiply
    166,401.95x = 249,602.31 × 77,606.10
  4. Step 4: Simplify right side
    166,401.95x = 19,370,661,830.09
  5. Step 5: Solve for x
    x = 19,370,661,830.09/166,401.95
  6. Step 6: Final answer
    x = 116,408.87

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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.