Home / 128,045.04-176,684.76-74,321.52

Finding the Fourth Proportional to 128,045.04, 176,684.76 and 74,321.52

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Solution

The fourth proportional to 128,045.04, 176,684.76 and 74,321.52 is: 102,553.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,045.04 : 176,684.76 = 74,321.52 : x
  2. Step 2: Convert to fraction form
    128,045.04/176,684.76 = 74,321.52/x
  3. Step 3: Cross multiply
    128,045.04x = 176,684.76 × 74,321.52
  4. Step 4: Simplify right side
    128,045.04x = 13,131,479,924.04
  5. Step 5: Solve for x
    x = 13,131,479,924.04/128,045.04
  6. Step 6: Final answer
    x = 102,553.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.