Home / 140,747.60-210,942.20-57,547.60

Finding the Fourth Proportional to 140,747.60, 210,942.20 and 57,547.60

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Solution

The fourth proportional to 140,747.60, 210,942.20 and 57,547.60 is: 86,248.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,747.60 : 210,942.20 = 57,547.60 : x
  2. Step 2: Convert to fraction form
    140,747.60/210,942.20 = 57,547.60/x
  3. Step 3: Cross multiply
    140,747.60x = 210,942.20 × 57,547.60
  4. Step 4: Simplify right side
    140,747.60x = 12,139,217,348.72
  5. Step 5: Solve for x
    x = 12,139,217,348.72/140,747.60
  6. Step 6: Final answer
    x = 86,248.13

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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.