Home / 111,875.36-167,813.49-45,316.76

Finding the Fourth Proportional to 111,875.36, 167,813.49 and 45,316.76

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Solution

The fourth proportional to 111,875.36, 167,813.49 and 45,316.76 is: 67,975.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,875.36 : 167,813.49 = 45,316.76 : x
  2. Step 2: Convert to fraction form
    111,875.36/167,813.49 = 45,316.76/x
  3. Step 3: Cross multiply
    111,875.36x = 167,813.49 × 45,316.76
  4. Step 4: Simplify right side
    111,875.36x = 7,604,762,812.02
  5. Step 5: Solve for x
    x = 7,604,762,812.02/111,875.36
  6. Step 6: Final answer
    x = 67,975.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.