Home / 97,810.90-147,029.55-90,877.30

Finding the Fourth Proportional to 97,810.90, 147,029.55 and 90,877.30

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Solution

The fourth proportional to 97,810.90, 147,029.55 and 90,877.30 is: 136,606.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,810.90 : 147,029.55 = 90,877.30 : x
  2. Step 2: Convert to fraction form
    97,810.90/147,029.55 = 90,877.30/x
  3. Step 3: Cross multiply
    97,810.90x = 147,029.55 × 90,877.30
  4. Step 4: Simplify right side
    97,810.90x = 13,361,648,524.22
  5. Step 5: Solve for x
    x = 13,361,648,524.22/97,810.90
  6. Step 6: Final answer
    x = 136,606.95

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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.