Home / 111,355.48-153,583.86-68,937.40

Finding the Fourth Proportional to 111,355.48, 153,583.86 and 68,937.40

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Solution

The fourth proportional to 111,355.48, 153,583.86 and 68,937.40 is: 95,079.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,355.48 : 153,583.86 = 68,937.40 : x
  2. Step 2: Convert to fraction form
    111,355.48/153,583.86 = 68,937.40/x
  3. Step 3: Cross multiply
    111,355.48x = 153,583.86 × 68,937.40
  4. Step 4: Simplify right side
    111,355.48x = 10,587,671,990.36
  5. Step 5: Solve for x
    x = 10,587,671,990.36/111,355.48
  6. Step 6: Final answer
    x = 95,079.94

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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.