Home / 153,726.81-230,660.27-78,899.49

Finding the Fourth Proportional to 153,726.81, 230,660.27 and 78,899.49

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Solution

The fourth proportional to 153,726.81, 230,660.27 and 78,899.49 is: 118,385.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,726.81 : 230,660.27 = 78,899.49 : x
  2. Step 2: Convert to fraction form
    153,726.81/230,660.27 = 78,899.49/x
  3. Step 3: Cross multiply
    153,726.81x = 230,660.27 × 78,899.49
  4. Step 4: Simplify right side
    153,726.81x = 18,198,977,666.26
  5. Step 5: Solve for x
    x = 18,198,977,666.26/153,726.81
  6. Step 6: Final answer
    x = 118,385.19

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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.