Home / 105,712,142.88-145,887,563.76-61,660,014.24

Finding the Fourth Proportional to 105,712,142.88, 145,887,563.76 and 61,660,014.24

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Solution

The fourth proportional to 105,712,142.88, 145,887,563.76 and 61,660,014.24 is: 85,093,623.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,712,142.88 : 145,887,563.76 = 61,660,014.24 : x
  2. Step 2: Convert to fraction form
    105,712,142.88/145,887,563.76 = 61,660,014.24/x
  3. Step 3: Cross multiply
    105,712,142.88x = 145,887,563.76 × 61,660,014.24
  4. Step 4: Simplify right side
    105,712,142.88x = 8,995,429,258,880,508
  5. Step 5: Solve for x
    x = 8,995,429,258,880,508/105,712,142.88
  6. Step 6: Final answer
    x = 85,093,623.25

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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.