Home / 131,115,118.90-196,896,627.15-85,877,461.30

Finding the Fourth Proportional to 131,115,118.90, 196,896,627.15 and 85,877,461.30

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Solution

The fourth proportional to 131,115,118.90, 196,896,627.15 and 85,877,461.30 is: 128,962,873.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,115,118.90 : 196,896,627.15 = 85,877,461.30 : x
  2. Step 2: Convert to fraction form
    131,115,118.90/196,896,627.15 = 85,877,461.30/x
  3. Step 3: Cross multiply
    131,115,118.90x = 196,896,627.15 × 85,877,461.30
  4. Step 4: Simplify right side
    131,115,118.90x = 16,908,982,478,174,654
  5. Step 5: Solve for x
    x = 16,908,982,478,174,654/131,115,118.90
  6. Step 6: Final answer
    x = 128,962,873.39

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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.