Home / 114,454.19-171,646.16-79,142.40

Finding the Fourth Proportional to 114,454.19, 171,646.16 and 79,142.40

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Solution

The fourth proportional to 114,454.19, 171,646.16 and 79,142.40 is: 118,689.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,454.19 : 171,646.16 = 79,142.40 : x
  2. Step 2: Convert to fraction form
    114,454.19/171,646.16 = 79,142.40/x
  3. Step 3: Cross multiply
    114,454.19x = 171,646.16 × 79,142.40
  4. Step 4: Simplify right side
    114,454.19x = 13,584,488,657.47
  5. Step 5: Solve for x
    x = 13,584,488,657.47/114,454.19
  6. Step 6: Final answer
    x = 118,689.31

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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.