Home / 143,417.65-197,897.16-79,743.19

Finding the Fourth Proportional to 143,417.65, 197,897.16 and 79,743.19

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Solution

The fourth proportional to 143,417.65, 197,897.16 and 79,743.19 is: 110,034.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,417.65 : 197,897.16 = 79,743.19 : x
  2. Step 2: Convert to fraction form
    143,417.65/197,897.16 = 79,743.19/x
  3. Step 3: Cross multiply
    143,417.65x = 197,897.16 × 79,743.19
  4. Step 4: Simplify right side
    143,417.65x = 15,780,950,830.34
  5. Step 5: Solve for x
    x = 15,780,950,830.34/143,417.65
  6. Step 6: Final answer
    x = 110,034.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.