Home / 122,148.47-183,247.17-42,189.36

Finding the Fourth Proportional to 122,148.47, 183,247.17 and 42,189.36

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Solution

The fourth proportional to 122,148.47, 183,247.17 and 42,189.36 is: 63,292.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,148.47 : 183,247.17 = 42,189.36 : x
  2. Step 2: Convert to fraction form
    122,148.47/183,247.17 = 42,189.36/x
  3. Step 3: Cross multiply
    122,148.47x = 183,247.17 × 42,189.36
  4. Step 4: Simplify right side
    122,148.47x = 7,731,080,824.11
  5. Step 5: Solve for x
    x = 7,731,080,824.11/122,148.47
  6. Step 6: Final answer
    x = 63,292.49

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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.