Home / 166,118.30-249,213.90-53,779.40

Finding the Fourth Proportional to 166,118.30, 249,213.90 and 53,779.40

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Solution

The fourth proportional to 166,118.30, 249,213.90 and 53,779.40 is: 80,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,118.30 : 249,213.90 = 53,779.40 : x
  2. Step 2: Convert to fraction form
    166,118.30/249,213.90 = 53,779.40/x
  3. Step 3: Cross multiply
    166,118.30x = 249,213.90 × 53,779.40
  4. Step 4: Simplify right side
    166,118.30x = 13,402,574,013.66
  5. Step 5: Solve for x
    x = 13,402,574,013.66/166,118.30
  6. Step 6: Final answer
    x = 80,680.90

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1.5x scale

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.