Home / 128,301.19-177,050.05-70,156.84

Finding the Fourth Proportional to 128,301.19, 177,050.05 and 70,156.84

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Solution

The fourth proportional to 128,301.19, 177,050.05 and 70,156.84 is: 96,813.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,301.19 : 177,050.05 = 70,156.84 : x
  2. Step 2: Convert to fraction form
    128,301.19/177,050.05 = 70,156.84/x
  3. Step 3: Cross multiply
    128,301.19x = 177,050.05 × 70,156.84
  4. Step 4: Simplify right side
    128,301.19x = 12,421,272,029.84
  5. Step 5: Solve for x
    x = 12,421,272,029.84/128,301.19
  6. Step 6: Final answer
    x = 96,813.38

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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.