Home / 123,526.51-185,300.70-34,780.78

Finding the Fourth Proportional to 123,526.51, 185,300.70 and 34,780.78

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Solution

The fourth proportional to 123,526.51, 185,300.70 and 34,780.78 is: 52,174.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,526.51 : 185,300.70 = 34,780.78 : x
  2. Step 2: Convert to fraction form
    123,526.51/185,300.70 = 34,780.78/x
  3. Step 3: Cross multiply
    123,526.51x = 185,300.70 × 34,780.78
  4. Step 4: Simplify right side
    123,526.51x = 6,444,902,880.55
  5. Step 5: Solve for x
    x = 6,444,902,880.55/123,526.51
  6. Step 6: Final answer
    x = 52,174.25

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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.