Home / 111,186.93-153,461.13-102,220.23

Finding the Fourth Proportional to 111,186.93, 153,461.13 and 102,220.23

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Solution

The fourth proportional to 111,186.93, 153,461.13 and 102,220.23 is: 141,085.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,186.93 : 153,461.13 = 102,220.23 : x
  2. Step 2: Convert to fraction form
    111,186.93/153,461.13 = 102,220.23/x
  3. Step 3: Cross multiply
    111,186.93x = 153,461.13 × 102,220.23
  4. Step 4: Simplify right side
    111,186.93x = 15,686,832,004.66
  5. Step 5: Solve for x
    x = 15,686,832,004.66/111,186.93
  6. Step 6: Final answer
    x = 141,085.22

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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.