Home / 128,023.02-191,662.47-74,551.77

Finding the Fourth Proportional to 128,023.02, 191,662.47 and 74,551.77

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Solution

The fourth proportional to 128,023.02, 191,662.47 and 74,551.77 is: 111,610.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,023.02 : 191,662.47 = 74,551.77 : x
  2. Step 2: Convert to fraction form
    128,023.02/191,662.47 = 74,551.77/x
  3. Step 3: Cross multiply
    128,023.02x = 191,662.47 × 74,551.77
  4. Step 4: Simplify right side
    128,023.02x = 14,288,776,381.07
  5. Step 5: Solve for x
    x = 14,288,776,381.07/128,023.02
  6. Step 6: Final answer
    x = 111,610.99

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1.5x scale

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.