Home / 166,421.40-249,632.10-73,109.40

Finding the Fourth Proportional to 166,421.40, 249,632.10 and 73,109.40

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Solution

The fourth proportional to 166,421.40, 249,632.10 and 73,109.40 is: 109,664.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,421.40 : 249,632.10 = 73,109.40 : x
  2. Step 2: Convert to fraction form
    166,421.40/249,632.10 = 73,109.40/x
  3. Step 3: Cross multiply
    166,421.40x = 249,632.10 × 73,109.40
  4. Step 4: Simplify right side
    166,421.40x = 18,250,453,051.74
  5. Step 5: Solve for x
    x = 18,250,453,051.74/166,421.40
  6. Step 6: Final answer
    x = 109,664.10

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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.