Home / 113,542.08-156,686.04-63,240

Finding the Fourth Proportional to 113,542.08, 156,686.04 and 63,240

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Solution

The fourth proportional to 113,542.08, 156,686.04 and 63,240 is: 87,270.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,542.08 : 156,686.04 = 63,240 : x
  2. Step 2: Convert to fraction form
    113,542.08/156,686.04 = 63,240/x
  3. Step 3: Cross multiply
    113,542.08x = 156,686.04 × 63,240
  4. Step 4: Simplify right side
    113,542.08x = 9,908,825,169.60
  5. Step 5: Solve for x
    x = 9,908,825,169.60/113,542.08
  6. Step 6: Final answer
    x = 87,270.07

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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.