Home / 102,165,132.80-140,985,915.93-55,755,718.88

Finding the Fourth Proportional to 102,165,132.80, 140,985,915.93 and 55,755,718.88

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Solution

The fourth proportional to 102,165,132.80, 140,985,915.93 and 55,755,718.88 is: 76,941,818.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,165,132.80 : 140,985,915.93 = 55,755,718.88 : x
  2. Step 2: Convert to fraction form
    102,165,132.80/140,985,915.93 = 55,755,718.88/x
  3. Step 3: Cross multiply
    102,165,132.80x = 140,985,915.93 × 55,755,718.88
  4. Step 4: Simplify right side
    102,165,132.80x = 7,860,771,093,927,465
  5. Step 5: Solve for x
    x = 7,860,771,093,927,465/102,165,132.80
  6. Step 6: Final answer
    x = 76,941,818.39

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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.