Home / 136,001.04-187,681.50-79,401.48

Finding the Fourth Proportional to 136,001.04, 187,681.50 and 79,401.48

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Solution

The fourth proportional to 136,001.04, 187,681.50 and 79,401.48 is: 109,574.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,001.04 : 187,681.50 = 79,401.48 : x
  2. Step 2: Convert to fraction form
    136,001.04/187,681.50 = 79,401.48/x
  3. Step 3: Cross multiply
    136,001.04x = 187,681.50 × 79,401.48
  4. Step 4: Simplify right side
    136,001.04x = 14,902,188,868.62
  5. Step 5: Solve for x
    x = 14,902,188,868.62/136,001.04
  6. Step 6: Final answer
    x = 109,574.08

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1.5x scale

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.