Home / 98,711.03-136,220.81-53,389.06

Finding the Fourth Proportional to 98,711.03, 136,220.81 and 53,389.06

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Solution

The fourth proportional to 98,711.03, 136,220.81 and 53,389.06 is: 73,676.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,711.03 : 136,220.81 = 53,389.06 : x
  2. Step 2: Convert to fraction form
    98,711.03/136,220.81 = 53,389.06/x
  3. Step 3: Cross multiply
    98,711.03x = 136,220.81 × 53,389.06
  4. Step 4: Simplify right side
    98,711.03x = 7,272,700,998.34
  5. Step 5: Solve for x
    x = 7,272,700,998.34/98,711.03
  6. Step 6: Final answer
    x = 73,676.68

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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.