Home / 166,277.40-249,416.10-121,990.65

Finding the Fourth Proportional to 166,277.40, 249,416.10 and 121,990.65

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Solution

The fourth proportional to 166,277.40, 249,416.10 and 121,990.65 is: 182,985.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,277.40 : 249,416.10 = 121,990.65 : x
  2. Step 2: Convert to fraction form
    166,277.40/249,416.10 = 121,990.65/x
  3. Step 3: Cross multiply
    166,277.40x = 249,416.10 × 121,990.65
  4. Step 4: Simplify right side
    166,277.40x = 30,426,432,159.47
  5. Step 5: Solve for x
    x = 30,426,432,159.47/166,277.40
  6. Step 6: Final answer
    x = 182,985.98

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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.