Home / 90,723,113.55-136,084,670.33-81,369,751.95

Finding the Fourth Proportional to 90,723,113.55, 136,084,670.33 and 81,369,751.95

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Solution

The fourth proportional to 90,723,113.55, 136,084,670.33 and 81,369,751.95 is: 122,054,627.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,723,113.55 : 136,084,670.33 = 81,369,751.95 : x
  2. Step 2: Convert to fraction form
    90,723,113.55/136,084,670.33 = 81,369,751.95/x
  3. Step 3: Cross multiply
    90,723,113.55x = 136,084,670.33 × 81,369,751.95
  4. Step 4: Simplify right side
    90,723,113.55x = 11,073,175,868,542,776
  5. Step 5: Solve for x
    x = 11,073,175,868,542,776/90,723,113.55
  6. Step 6: Final answer
    x = 122,054,627.93

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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.