Home / 142,347.14-213,448.08-47,543.18

Finding the Fourth Proportional to 142,347.14, 213,448.08 and 47,543.18

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Solution

The fourth proportional to 142,347.14, 213,448.08 and 47,543.18 is: 71,290.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,347.14 : 213,448.08 = 47,543.18 : x
  2. Step 2: Convert to fraction form
    142,347.14/213,448.08 = 47,543.18/x
  3. Step 3: Cross multiply
    142,347.14x = 213,448.08 × 47,543.18
  4. Step 4: Simplify right side
    142,347.14x = 10,148,000,488.09
  5. Step 5: Solve for x
    x = 10,148,000,488.09/142,347.14
  6. Step 6: Final answer
    x = 71,290.51

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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.