Home / 149,048.16-223,506.64-78,911.12

Finding the Fourth Proportional to 149,048.16, 223,506.64 and 78,911.12

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Solution

The fourth proportional to 149,048.16, 223,506.64 and 78,911.12 is: 118,331.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,048.16 : 223,506.64 = 78,911.12 : x
  2. Step 2: Convert to fraction form
    149,048.16/223,506.64 = 78,911.12/x
  3. Step 3: Cross multiply
    149,048.16x = 223,506.64 × 78,911.12
  4. Step 4: Simplify right side
    149,048.16x = 17,637,159,289.84
  5. Step 5: Solve for x
    x = 17,637,159,289.84/149,048.16
  6. Step 6: Final answer
    x = 118,331.95

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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.