Home / 142,765,191.50-197,017,145.26-77,575,095.50

Finding the Fourth Proportional to 142,765,191.50, 197,017,145.26 and 77,575,095.50

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Solution

The fourth proportional to 142,765,191.50, 197,017,145.26 and 77,575,095.50 is: 107,054,273.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,765,191.50 : 197,017,145.26 = 77,575,095.50 : x
  2. Step 2: Convert to fraction form
    142,765,191.50/197,017,145.26 = 77,575,095.50/x
  3. Step 3: Cross multiply
    142,765,191.50x = 197,017,145.26 × 77,575,095.50
  4. Step 4: Simplify right side
    142,765,191.50x = 15,283,623,858,681,872
  5. Step 5: Solve for x
    x = 15,283,623,858,681,872/142,765,191.50
  6. Step 6: Final answer
    x = 107,054,273.51

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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.