Home / 112,123,925.30-168,185,887.95-81,890,837.30

Finding the Fourth Proportional to 112,123,925.30, 168,185,887.95 and 81,890,837.30

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Solution

The fourth proportional to 112,123,925.30, 168,185,887.95 and 81,890,837.30 is: 122,836,255.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,123,925.30 : 168,185,887.95 = 81,890,837.30 : x
  2. Step 2: Convert to fraction form
    112,123,925.30/168,185,887.95 = 81,890,837.30/x
  3. Step 3: Cross multiply
    112,123,925.30x = 168,185,887.95 × 81,890,837.30
  4. Step 4: Simplify right side
    112,123,925.30x = 13,772,883,186,269,480
  5. Step 5: Solve for x
    x = 13,772,883,186,269,480/112,123,925.30
  6. Step 6: Final answer
    x = 122,836,255.95

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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.