Home / 166,011.90-249,147.45-77,276.40

Finding the Fourth Proportional to 166,011.90, 249,147.45 and 77,276.40

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Solution

The fourth proportional to 166,011.90, 249,147.45 and 77,276.40 is: 115,974.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,011.90 : 249,147.45 = 77,276.40 : x
  2. Step 2: Convert to fraction form
    166,011.90/249,147.45 = 77,276.40/x
  3. Step 3: Cross multiply
    166,011.90x = 249,147.45 × 77,276.40
  4. Step 4: Simplify right side
    166,011.90x = 19,253,218,005.18
  5. Step 5: Solve for x
    x = 19,253,218,005.18/166,011.90
  6. Step 6: Final answer
    x = 115,974.93

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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.