Home / 113,053.13-156,013.92-70,636.26

Finding the Fourth Proportional to 113,053.13, 156,013.92 and 70,636.26

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Solution

The fourth proportional to 113,053.13, 156,013.92 and 70,636.26 is: 97,478.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,053.13 : 156,013.92 = 70,636.26 : x
  2. Step 2: Convert to fraction form
    113,053.13/156,013.92 = 70,636.26/x
  3. Step 3: Cross multiply
    113,053.13x = 156,013.92 × 70,636.26
  4. Step 4: Simplify right side
    113,053.13x = 11,020,239,816.74
  5. Step 5: Solve for x
    x = 11,020,239,816.74/113,053.13
  6. Step 6: Final answer
    x = 97,478.41

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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.