Home / 136,982.80-205,328.40-52,710.40

Finding the Fourth Proportional to 136,982.80, 205,328.40 and 52,710.40

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Solution

The fourth proportional to 136,982.80, 205,328.40 and 52,710.40 is: 79,009.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,982.80 : 205,328.40 = 52,710.40 : x
  2. Step 2: Convert to fraction form
    136,982.80/205,328.40 = 52,710.40/x
  3. Step 3: Cross multiply
    136,982.80x = 205,328.40 × 52,710.40
  4. Step 4: Simplify right side
    136,982.80x = 10,822,942,095.36
  5. Step 5: Solve for x
    x = 10,822,942,095.36/136,982.80
  6. Step 6: Final answer
    x = 79,009.50

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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.