Home / 128,243.94-176,985.79-70,882.04

Finding the Fourth Proportional to 128,243.94, 176,985.79 and 70,882.04

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Solution

The fourth proportional to 128,243.94, 176,985.79 and 70,882.04 is: 97,822.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,243.94 : 176,985.79 = 70,882.04 : x
  2. Step 2: Convert to fraction form
    128,243.94/176,985.79 = 70,882.04/x
  3. Step 3: Cross multiply
    128,243.94x = 176,985.79 × 70,882.04
  4. Step 4: Simplify right side
    128,243.94x = 12,545,113,514.64
  5. Step 5: Solve for x
    x = 12,545,113,514.64/128,243.94
  6. Step 6: Final answer
    x = 97,822.27

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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.