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Finding the Fourth Proportional to 126,888.63, 175,112.04 and 70,300

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Solution

The fourth proportional to 126,888.63, 175,112.04 and 70,300 is: 97,017.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,888.63 : 175,112.04 = 70,300 : x
  2. Step 2: Convert to fraction form
    126,888.63/175,112.04 = 70,300/x
  3. Step 3: Cross multiply
    126,888.63x = 175,112.04 × 70,300
  4. Step 4: Simplify right side
    126,888.63x = 12,310,376,412
  5. Step 5: Solve for x
    x = 12,310,376,412/126,888.63
  6. Step 6: Final answer
    x = 97,017.17

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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.