Home / 138,825.30-208,116.45-94,307.70

Finding the Fourth Proportional to 138,825.30, 208,116.45 and 94,307.70

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Solution

The fourth proportional to 138,825.30, 208,116.45 and 94,307.70 is: 141,379.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,825.30 : 208,116.45 = 94,307.70 : x
  2. Step 2: Convert to fraction form
    138,825.30/208,116.45 = 94,307.70/x
  3. Step 3: Cross multiply
    138,825.30x = 208,116.45 × 94,307.70
  4. Step 4: Simplify right side
    138,825.30x = 19,626,983,731.67
  5. Step 5: Solve for x
    x = 19,626,983,731.67/138,825.30
  6. Step 6: Final answer
    x = 141,379.01

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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.