Home / 161,707,126.40-242,571,187.20-85,179,622.40

Finding the Fourth Proportional to 161,707,126.40, 242,571,187.20 and 85,179,622.40

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Solution

The fourth proportional to 161,707,126.40, 242,571,187.20 and 85,179,622.40 is: 127,774,963.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,707,126.40 : 242,571,187.20 = 85,179,622.40 : x
  2. Step 2: Convert to fraction form
    161,707,126.40/242,571,187.20 = 85,179,622.40/x
  3. Step 3: Cross multiply
    161,707,126.40x = 242,571,187.20 × 85,179,622.40
  4. Step 4: Simplify right side
    161,707,126.40x = 20,662,122,130,815,712
  5. Step 5: Solve for x
    x = 20,662,122,130,815,712/161,707,126.40
  6. Step 6: Final answer
    x = 127,774,963.24

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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.