Home / 102,721,290.16-141,754,860.67-55,678,174.16

Finding the Fourth Proportional to 102,721,290.16, 141,754,860.67 and 55,678,174.16

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Solution

The fourth proportional to 102,721,290.16, 141,754,860.67 and 55,678,174.16 is: 76,835,598.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,721,290.16 : 141,754,860.67 = 55,678,174.16 : x
  2. Step 2: Convert to fraction form
    102,721,290.16/141,754,860.67 = 55,678,174.16/x
  3. Step 3: Cross multiply
    102,721,290.16x = 141,754,860.67 × 55,678,174.16
  4. Step 4: Simplify right side
    102,721,290.16x = 7,892,651,820,410,793
  5. Step 5: Solve for x
    x = 7,892,651,820,410,793/102,721,290.16
  6. Step 6: Final answer
    x = 76,835,598.62

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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.