Home / 128,058.02-192,037.80-88,495.19

Finding the Fourth Proportional to 128,058.02, 192,037.80 and 88,495.19

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Solution

The fourth proportional to 128,058.02, 192,037.80 and 88,495.19 is: 132,708.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,058.02 : 192,037.80 = 88,495.19 : x
  2. Step 2: Convert to fraction form
    128,058.02/192,037.80 = 88,495.19/x
  3. Step 3: Cross multiply
    128,058.02x = 192,037.80 × 88,495.19
  4. Step 4: Simplify right side
    128,058.02x = 16,994,421,598.18
  5. Step 5: Solve for x
    x = 16,994,421,598.18/128,058.02
  6. Step 6: Final answer
    x = 132,708.76

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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.