Home / 153,893.28-212,461.08-117,307.51

Finding the Fourth Proportional to 153,893.28, 212,461.08 and 117,307.51

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Solution

The fourth proportional to 153,893.28, 212,461.08 and 117,307.51 is: 161,951.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,893.28 : 212,461.08 = 117,307.51 : x
  2. Step 2: Convert to fraction form
    153,893.28/212,461.08 = 117,307.51/x
  3. Step 3: Cross multiply
    153,893.28x = 212,461.08 × 117,307.51
  4. Step 4: Simplify right side
    153,893.28x = 24,923,279,295.66
  5. Step 5: Solve for x
    x = 24,923,279,295.66/153,893.28
  6. Step 6: Final answer
    x = 161,951.70

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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.