Home / 188,756.16-282,936.80-70,376

Finding the Fourth Proportional to 188,756.16, 282,936.80 and 70,376

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Solution

The fourth proportional to 188,756.16, 282,936.80 and 70,376 is: 105,490.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,756.16 : 282,936.80 = 70,376 : x
  2. Step 2: Convert to fraction form
    188,756.16/282,936.80 = 70,376/x
  3. Step 3: Cross multiply
    188,756.16x = 282,936.80 × 70,376
  4. Step 4: Simplify right side
    188,756.16x = 19,911,960,236.80
  5. Step 5: Solve for x
    x = 19,911,960,236.80/188,756.16
  6. Step 6: Final answer
    x = 105,490.39

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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.