Home / 128,954.02-191,870.88-125,739.94

Finding the Fourth Proportional to 128,954.02, 191,870.88 and 125,739.94

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Solution

The fourth proportional to 128,954.02, 191,870.88 and 125,739.94 is: 187,088.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,954.02 : 191,870.88 = 125,739.94 : x
  2. Step 2: Convert to fraction form
    128,954.02/191,870.88 = 125,739.94/x
  3. Step 3: Cross multiply
    128,954.02x = 191,870.88 × 125,739.94
  4. Step 4: Simplify right side
    128,954.02x = 24,125,832,938.95
  5. Step 5: Solve for x
    x = 24,125,832,938.95/128,954.02
  6. Step 6: Final answer
    x = 187,088.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.