Home / 121,307.12-181,905.60-51,148.16

Finding the Fourth Proportional to 121,307.12, 181,905.60 and 51,148.16

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Solution

The fourth proportional to 121,307.12, 181,905.60 and 51,148.16 is: 76,699.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,307.12 : 181,905.60 = 51,148.16 : x
  2. Step 2: Convert to fraction form
    121,307.12/181,905.60 = 51,148.16/x
  3. Step 3: Cross multiply
    121,307.12x = 181,905.60 × 51,148.16
  4. Step 4: Simplify right side
    121,307.12x = 9,304,136,733.70
  5. Step 5: Solve for x
    x = 9,304,136,733.70/121,307.12
  6. Step 6: Final answer
    x = 76,699.02

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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.