Home / 124,902,030.80-187,353,046.20-81,064,053.20

Finding the Fourth Proportional to 124,902,030.80, 187,353,046.20 and 81,064,053.20

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Solution

The fourth proportional to 124,902,030.80, 187,353,046.20 and 81,064,053.20 is: 121,596,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,902,030.80 : 187,353,046.20 = 81,064,053.20 : x
  2. Step 2: Convert to fraction form
    124,902,030.80/187,353,046.20 = 81,064,053.20/x
  3. Step 3: Cross multiply
    124,902,030.80x = 187,353,046.20 × 81,064,053.20
  4. Step 4: Simplify right side
    124,902,030.80x = 15,187,597,304,338,858
  5. Step 5: Solve for x
    x = 15,187,597,304,338,858/124,902,030.80
  6. Step 6: Final answer
    x = 121,596,079.80

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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.